Glycine chroman-6-sulfonamides for use as inhibitors of diacylglycerol lipase

ABSTRACT

The present disclosure is generally directed to compounds that can inhibit DAGLα and/or β activity, compositions comprising such compounds, and methods for inhibiting DAGLα and/or β activity.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional Application Ser.No. 61/306,023 filed Feb. 19, 2010.

The present disclosure is generally directed to compounds that caninhibit DAGLα and/or β activity, compositions comprising such compounds,and methods for inhibiting DAGLα and/or β activity.

Diacylglycerol Lipase enzymes are esterases that hydrolyzediacylglycerol to form the endogenous cannabinoid 2-arachidonyl glycerol(2-AG) (J Cell Biol 2003; 163:463-8). There are two isoforms of theenzyme, DAGLα and DAGLβ. DAGLα is predominantly expressed throughout theCNS with limited expression in the periphery, whereas DAGLβ ispredominantly expressed in peripheral tissues (J Cell Biol 2003;163:463-8) Immunohistochemical studies have demonstrated DAGLα islocalized post-synaptically, consistent with its role in generating 2-AGwhich acts as a retrograde messenger activating presynaptic cannabinoidreceptors including CB1 (J Neurosci 2007; 27(14):3663-3676, PLoS August2007; 8:e709).

Consistent with the proposed role for DAGLα and DAGLβ as key enzymes inendocannabinoid synthesis, genetically-modified mice that lack DAGLαexpression (BMS, Lexicon) exhibit decreased tissue concentrations of2-AG. In addition, the DAGLα knockout animals exhibit multiplephenotypes in animal models relevant to human diseases. For example, inmodels predictive of activity in affective disorders, DAGLα−/− animalsexhibit anxiolytic and antidepressant phenotypes. DAGLα−/− animals alsoare resistant to diet-induced obesity, have decreased food intake. Theseanimals also exhibit decreased body weight, body fat, sensitivity topain, and improved cognitive performance demonstrating broad therapeuticpotential for the enzyme.

Based on these data and the role of DAGL enzymes in endocannaboidsynthesis, compounds that inhibit DAGLα and/or β activity are predictedto have therapeutic utility in the treatment of schizophrenia,psychosis, bipolar disorder, depression, anxiety, pain, cognitiveimpairment, diabetes, obesity, hepatic steatosis, dyslipidemias, andother related disease states.

Currently, the only reported inhibitors of DAGL are chemically reactivemolecules, that as such, can be expected to have limited utility due tolack of selectivity (Bioorganic & Medicinal Chemistry Letters (2008),18(22), 5838-5841).

In a first aspect the present disclosure provides a compound of Formula(I)

or a pharmaceutically acceptable salt thereof, wherein:

R is selected from hydrogen, cyano, halo, and C₁₋₆alkyl; and

Ar is selected from phenyl, naphthyl, or quinolinyl, wherein each aresubstituted with 0, 1, or 2 substituents selected from the groupconsisting of C₁₋₆alkyl, C₁₋₆alkoxy, trifluoromethyl, trifluoromethoxy,cyano, and halo.

In a first embodiment of the first aspect the present disclosureprovides a compound of Formula (I), or a pharmaceutically acceptablesalt thereof, wherein Ar is phenyl.

In a second embodiment of the first aspect the present disclosureprovides a compound of Formula (I), or a pharmaceutically acceptablesalt thereof, wherein Ar is phenyl and R is hydrogen.

In a third embodiment of the first aspect the present disclosureprovides a compound of Formula (I), or a pharmaceutically acceptablesalt thereof, wherein Ar is phenyl and R is selected from cyano, halo,and C₁ alkyl.

In a fourth embodiment of the first aspect the present disclosureprovides a compound of Formula (I), or a pharmaceutically acceptablesalt thereof, wherein Ar is naphthyl.

In a fifth embodiment of the first aspect the present disclosureprovides a compound of Formula (I), or a pharmaceutically acceptablesalt thereof, wherein Ar is naphthyl and R is hydrogen.

In a sixth embodiment of the first aspect the present disclosureprovides a compound of Formula (I), or a pharmaceutically acceptablesalt thereof, wherein Ar is naphthyl and R is selected from cyano, halo,and C₁ alkyl.

In a seventh embodiment of the first aspect the present disclosureprovides a compound of Formula (I), or a pharmaceutically acceptablesalt thereof, wherein Ar is quinolinyl.

In an eighth embodiment of the first aspect the present disclosureprovides a compound of Formula (I), or a pharmaceutically acceptablesalt thereof, wherein Ar is quinolinyl and R is hydrogen.

In a ninth embodiment of the first aspect the present disclosureprovides a compound of Formula (I), or a pharmaceutically acceptablesalt thereof, wherein Ar is quinolinyl and R is selected from cyano,halo, and C₁ alkyl.

In a second aspect the present disclosure provides a compositioncomprising a pharmaceutically acceptable amount of a compound of Formula(I), or a pharmaceutically acceptable salt thereof, and apharmaceutically acceptable carrier.

In a third aspect the present disclosure provides a method for treatinga disorder associated with DAGLα and/or DAGLβ activity, the methodcomprising administering to a patient in need thereof a therapeuticallyeffective amount of a compound of Formula (I), or a pharmaceuticallyacceptable salt thereof. In a first embodiment of the third aspect thedisorder is selected from schizophrenia, psychosis, bipolar disorder,depression, anxiety, pain, cognitive impairment, diabetes, obesity,hepatic steatosis, and dyslipidemia. In a second embodiment of the thirdaspect the disorder is selected from schizophrenia, bipolar disorder,depression, anxiety, diabetes, obesity, hepatic steatosis, anddyslipidemia.

Other embodiments of the present disclosure may comprise suitablecombinations of two or more of embodiments and/or aspects disclosedherein.

Yet other embodiments and aspects of the disclosure will be apparentaccording to the description provided below.

The description of the present disclosure herein should be construed incongruity with the laws and principals of chemical bonding. In someinstances it may be necessary to remove a hydrogen atom in orderaccommodate a substitutent at any given location.

It should be understood that the compounds encompassed by the presentdisclosure are those that are suitably stable for use as pharmaceuticalagent.

All patents, patent applications, and literature references cited in thespecification are herein incorporated by reference in their entirety. Inthe case of inconsistencies, the present disclosure, includingdefinitions, will prevail.

As used in the present specification, the following terms have themeanings indicated:

As used herein, the singular forms “a”, “an”, and “the” include pluralreference unless the context clearly dictates otherwise.

In some instances, the number of carbon atoms in any particular group isdenoted before the recitation of the group. For example, the term “C₂₋₆alkenyl” denotes an alkenyl group containing two to six carbon atoms.Where these designations exist they supercede all other definitionscontained herein.

The term “alkoxy,” as used herein, refers to an alkyl group attached tothe parent molecular moiety through an oxygen atom.

The term “alkyl,” as used herein, refers to a group derived from astraight or branched chain saturated hydrocarbon containing from one tosix carbon atoms.

The term “cyano,” as used herein, refers to —CN.

The terms “halo” and “halogen,” as used herein, refer to F, Cl, Br, orI.

Asymmetric centers may exist in the compounds of the present disclosure.These centers are designated by the symbols “R” or “S”, depending on theconfiguration of substituents around the chiral carbon atom. It shouldbe understood that the disclosure encompasses all stereochemicalisomeric forms, or mixtures thereof, which possess the ability toinhibit DAGL. Individual stereoisomers of compounds can be preparedsynthetically from commercially available starting materials whichcontain chiral centers or by preparation of mixtures of enantiomericproducts followed by separation such as conversion to a mixture ofdiastereomers followed by separation or recrystallization,chromatographic techniques, or direct separation of enantiomers onchiral chromatographic columns. Starting compounds of particularstereochemistry are either commercially available or can be made andresolved by techniques known in the art.

Certain compounds of the present disclosure may also exist in differentstable conformational forms which may be separable. Torsional asymmetrydue to restricted rotation about an asymmetric single bond, for examplebecause of steric hindrance or ring strain, may permit separation ofdifferent conformers. The present disclosure includes eachconformational isomer of these compounds and mixtures thereof.

The term “compounds of the present disclosure”, and equivalentexpressions, are meant to embrace compounds of Formula (I), andpharmaceutically acceptable enantiomers, diastereomers, and saltsthereof. Similarly, references to intermediates are meant to embracetheir salts where the context so permits.

The present disclosure is intended to include all isotopes of atomsoccurring in the present compounds. Isotopes include those atoms havingthe same atomic number but different mass numbers. By way of generalexample and without limitation, isotopes of hydrogen include deuteriumand tritium. Isotopes of carbon include ¹³C and ¹⁴C.Isotopically-labeled compounds of the invention can generally beprepared by conventional techniques known to those skilled in the art orby processes analogous to those described herein, using an appropriateisotopically-labeled reagent in place of the non-labeled reagentotherwise employed. Such compounds may have a variety of potential uses,for example as standards and reagents in determining biologicalactivity. In the case of stable isotopes, such compounds may have thepotential to favorably modify biological, pharmacological, orpharmacokinetic properties.

The compounds of the present disclosure can exist as pharmaceuticallyacceptable salts. The term “pharmaceutically acceptable salt,” as usedherein, represents salts or zwitterionic forms of the compounds of thepresent disclosure which are water or oil-soluble or dispersible, whichare, within the scope of sound medical judgment, suitable for use incontact with the tissues of patients without excessive toxicity,irritation, allergic response, or other problem or complicationcommensurate with a reasonable benefit/risk ratio, and are effective fortheir intended use. The salts can be prepared during the final isolationand purification of the compounds or separately by reacting a suitablenitrogen atom with a suitable acid. Representative acid addition saltsinclude acetate, adipate, alginate, citrate, aspartate, benzoate,benzenesulfonate, bisulfate, butyrate, camphorate, camphorsulfonate;digluconate, dihydrobromide, diydrochloride, dihydroiodide,glycerophosphate, hemisulfate, heptanoate, hexanoate, formate, fumarate,hydrochloride, hydrobromide, hydroiodide, 2-hydroxyethanesulfonate,lactate, maleate, mesitylenesulfonate, methanesulfonate,naphthylenesulfonate, nicotinate, 2-naphthalenesulfonate, oxalate,palmoate, pectinate, persulfate, 3-phenylproprionate, picrate, pivalate,propionate, succinate, tartrate, trichloroacetate, trifluoroacetate,phosphate, glutamate, bicarbonate, para-toluenesulfonate, andundecanoate. Examples of acids which can be employed to formpharmaceutically acceptable addition salts include inorganic acids suchas hydrochloric, hydrobromic, sulfuric, and phosphoric, and organicacids such as oxalic, maleic, succinic, and citric.

Basic addition salts can be prepared during the final isolation andpurification of the compounds by reacting a carboxy group with asuitable base such as the hydroxide, carbonate, or bicarbonate of ametal cation or with ammonia or an organic primary, secondary, ortertiary amine. The cations of pharmaceutically acceptable salts includelithium, sodium, potassium, calcium, magnesium, and aluminum, as well asnontoxic quaternary amine cations such as ammonium, tetramethylammonium,tetraethylammonium, methylamine, dimethylamine, trimethylamine,triethylamine, diethylamine, ethylamine, tributylamine, pyridine,N,N-dimethylaniline, N-methylpiperidine, N-methylmorpholine,dicyclohexylamine, procaine, dibenzylamine, N,N-dibenzylphenethylamine,and N,N′-dibenzylethylenediamine. Other representative organic aminesuseful for the formation of base addition salts include ethylenediamine,ethanolamine, diethanolamine, piperidine, and piperazine.

When it is possible that, for use in therapy, therapeutically effectiveamounts of a compound of Formula (I), as well as pharmaceuticallyacceptable salts thereof, may be administered as the raw chemical, it ispossible to present the active ingredient as a pharmaceuticalcomposition. Accordingly, the disclosure further provides pharmaceuticalcompositions, which include therapeutically effective amounts ofcompounds of Formula (I) or pharmaceutically acceptable salts thereof,and one or more pharmaceutically acceptable carriers, diluents, orexcipients. The term “therapeutically effective amount,” as used herein,refers to the total amount of each active component that is sufficientto show a meaningful patient benefit. When applied to an individualactive ingredient, administered alone, the term refers to thatingredient alone. When applied to a combination, the term refers tocombined amounts of the active ingredients that result in thetherapeutic effect, whether administered in combination, serially, orsimultaneously. The compounds of Formula (I) and pharmaceuticallyacceptable salts thereof, are as described above. The carrier(s),diluent(s), or excipient(s) must be acceptable in the sense of beingcompatible with the other ingredients of the formulation and notdeleterious to the recipient thereof. In accordance with another aspectof the present disclosure there is also provided a process for thepreparation of a pharmaceutical formulation including admixing acompound of Formula (I), or a pharmaceutically acceptable salt thereof,with one or more pharmaceutically acceptable carriers, diluents, orexcipients. The term “pharmaceutically acceptable,” as used herein,refers to those compounds, materials, compositions, and/or dosage formswhich are, within the scope of sound medical judgment, suitable for usein contact with the tissues of patients without excessive toxicity,irritation, allergic response, or other problem or complicationcommensurate with a reasonable benefit/risk ratio, and are effective fortheir intended use.

Pharmaceutical formulations may be presented in unit dose formscontaining a predetermined amount of active ingredient per unit dose.Dosage levels of between about 0.01 and about 250 milligram per kilogram(“mg/kg”) body weight per day, preferably between about 0.05 and about100 mg/kg body weight per day of the compounds of the present disclosureare typical in a monotherapy for the prevention and treatment ofdisease. Typically, the pharmaceutical compositions of this disclosurewill be administered from about 1 to about 5 times per day oralternatively, as a continuous infusion. Such administration can be usedas a chronic or acute therapy. The amount of active ingredient that maybe combined with the carrier materials to produce a single dosage formwill vary depending on the condition being treated, the severity of thecondition, the time of administration, the route of administration, therate of excretion of the compound employed, the duration of treatment,and the age, gender, weight, and condition of the patient. Preferredunit dosage formulations are those containing a daily dose or sub-dose,as herein above recited, or an appropriate fraction thereof, of anactive ingredient. Treatment may be initiated with small dosagessubstantially less than the optimum dose of the compound. Thereafter,the dosage is increased by small increments until the optimum effectunder the circumstances is reached. In general, the compound is mostdesirably administered at a concentration level that will generallyafford effective results without causing any harmful or deleterious sideeffects.

When the compositions of this disclosure comprise a combination of acompound of the present disclosure and one or more additionaltherapeutic or prophylactic agent, both the compound and the additionalagent are usually present at dosage levels of between about 10 to 150%,and more preferably between about 10 and 80% of the dosage normallyadministered in a monotherapy regimen.

Pharmaceutical formulations may be adapted for administration by anyappropriate route, for example by the oral (including buccal orsublingual), rectal, nasal, topical (including buccal, sublingual, ortransdermal), vaginal, or parenteral (including subcutaneous,intracutaneous, intramuscular, intra-articular, intrasynovial,intrasternal, intrathecal, intralesional, intravenous, or intradermalinjections or infusions) route. Such formulations may be prepared by anymethod known in the art of pharmacy, for example by bringing intoassociation the active ingredient with the carrier(s) or excipient(s).Oral administration or administration by injection are preferred.

Pharmaceutical formulations adapted for oral administration may bepresented as discrete units such as capsules or tablets; powders orgranules; solutions or suspensions in aqueous or non-aqueous liquids;edible foams or whips; or oil-in-water liquid emulsions or water-in-oilemulsions.

For instance, for oral administration in the form of a tablet orcapsule, the active drug component can be combined with an oral,non-toxic pharmaceutically acceptable inert carrier such as ethanol,glycerol, water, and the like. Powders are prepared by comminuting thecompound to a suitable fine size and mixing with a similarly comminutedpharmaceutical carrier such as an edible carbohydrate, as, for example,starch or mannitol. Flavoring, preservative, dispersing, and coloringagent can also be present.

Capsules are made by preparing a powder mixture, as described above, andfilling formed gelatin sheaths. Glidants and lubricants such ascolloidal silica, talc, magnesium stearate, calcium stearate, or solidpolyethylene glycol can be added to the powder mixture before thefilling operation. A disintegrating or solubilizing agent such asagar-agar, calcium carbonate, or sodium carbonate can also be added toimprove the availability of the medicament when the capsule is ingested.

Moreover, when desired or necessary, suitable binders, lubricants,disintegrating agents, and coloring agents can also be incorporated intothe mixture. Suitable binders include starch, gelatin, natural sugarssuch as glucose or beta-lactose, corn sweeteners, natural and syntheticgums such as acacia, tragacanth or sodium alginate,carboxymethylcellulose, polyethylene glycol, and the like. Lubricantsused in these dosage forms include sodium oleate, sodium chloride, andthe like. Disintegrators include, without limitation, starch, methylcellulose, agar, betonite, xanthan gum, and the like. Tablets areformulated, for example, by preparing a powder mixture, granulating orslugging, adding a lubricant and disintegrant, and pressing intotablets. A powder mixture is prepared by mixing the compound, suitablecomminuted, with a diluent or base as described above, and optionally,with a binder such as carboxymethylcellulose, an aliginate, gelating, orpolyvinyl pyrrolidone, a solution retardant such as paraffin, aresorption accelerator such as a quaternary salt and/or and absorptionagent such as betonite, kaolin, or dicalcium phosphate. The powdermixture can be granulated by wetting with a binder such as syrup, starchpaste, acadia mucilage, or solutions of cellulosic or polymericmaterials and forcing through a screen. As an alternative togranulating, the powder mixture can be run through the tablet machineand the result is imperfectly formed slugs broken into granules. Thegranules can be lubricated to prevent sticking to the tablet formingdies by means of the addition of stearic acid, a stearate salt, talc, ormineral oil. The lubricated mixture is then compressed into tablets. Thecompounds of the present disclosure can also be combined with a freeflowing inert carrier and compressed into tablets directly without goingthrough the granulating or slugging steps. A clear or opaque protectivecoating consisting of a sealing coat of shellac, a coating of sugar orpolymeric material, and a polish coating of wax can be provided.Dyestuffs can be added to these coatings to distinguish different unitdosages.

Oral fluids such as solution, syrups, and elixirs can be prepared indosage unit form so that a given quantity contains a predeterminedamount of the compound. Syrups can be prepared by dissolving thecompound in a suitably flavored aqueous solution, while elixirs areprepared through the use of a non-toxic vehicle. Solubilizers andemulsifiers such as ethoxylated isostearyl alcohols and polyoxyethylenesorbitol ethers, preservatives, flavor additive such as peppermint oilor natural sweeteners, or saccharin or other artificial sweeteners, andthe like can also be added.

Where appropriate, dosage unit formulations for oral administration canbe microencapsulated. The formulation can also be prepared to prolong orsustain the release as for example by coating or embedding particulatematerial in polymers, wax, or the like.

The compounds of Formula (I), and pharmaceutically acceptable saltsthereof, can also be administered in the form of liposome deliverysystems, such as small unilamellar vesicles, large unilamellar vesicles,and multilamellar vesicles. Liposomes can be formed from a variety ofphopholipids, such as cholesterol, stearylamine, or phophatidylcholines.

The compounds of Formula (I) and pharmaceutically acceptable saltsthereof may also be delivered by the use of monoclonal antibodies asindividual carriers to which the compound molecules are coupled. Thecompounds may also be coupled with soluble polymers as targetable drugcarriers. Such polymers can include polyvinylpyrrolidone, pyrancopolymer, polyhydroxypropylmethacrylamidephenol,polyhydroxyethylaspartamidephenol, or polyethyleneoxidepolylysinesubstituted with palitoyl residues. Furthermore, the compounds may becoupled to a class of biodegradable polymers useful in achievingcontrolled release of a drug, for example, polylactic acid, polepsiloncaprolactone, polyhydroxy butyric acid, polyorthoesters, polyacetals,polydihydropyrans, polycyanoacrylates, and cross-linked or amphipathicblock copolymers of hydrogels.

Pharmaceutical formulations adapted for transdermal administration maybe presented as discrete patches intended to remain in intimate contactwith the epidermis of the recipient for a prolonged period of time. Forexample, the active ingredient may be delivered from the patch byiontophoresis as generally described in Pharmaceutical Research 1986,3(6), 318.

Pharmaceutical formulations adapted for topical administration may beformulated as ointments, creams, suspensions, lotions, powders,solutions, pastes, gels, sprays, aerosols, or oils.

Pharmaceutical formulations adapted for rectal administration may bepresented as suppositories or as enemas.

Pharmaceutical formulations adapted for nasal administration wherein thecarrier is a solid include a course powder having a particle size forexample in the range 20 to 500 microns which is administered in themanner in which snuff is taken, i.e., by rapid inhalation through thenasal passage from a container of the powder held close up to the nose.Suitable formulations wherein the carrier is a liquid, foradministration as a nasal spray or nasal drops, include aqueous or oilsolutions of the active ingredient.

Pharmaceutical formulations adapted for administration by inhalationinclude fine particle dusts or mists, which may be generated by means ofvarious types of metered, dose pressurized aerosols, nebulizers, orinsufflators.

Pharmaceutical formulations adapted for vaginal administration may bepresented as pessaries, tampons, creams, gels, pastes, foams, or sprayformulations.

Pharmaceutical formulations adapted for parenteral administrationinclude aqueous and non-aqueous sterile injection solutions which maycontain anti-oxidants, buffers, bacteriostats, and soutes which renderthe formulation isotonic with the blood of the intended recipient; andaqueous and non-aqueous sterile suspensions which may include suspendingagents and thickening agents. The formulations may be presented inunit-dose or multi-dose containers, for example sealed ampoules andvials, and may be stored in a freeze-dried (lyophilized) conditionrequiring only the addition of the sterile liquid carrier, for examplewater for injections, immediately prior to use. Extemporaneous injectionsolutions and suspensions may be prepared from sterile powders,granules, and tablets.

It should be understood that in addition to the ingredients particularlymentioned above, the formulations may include other agents conventionalin the art having regard to the type of formulation in question, forexample those suitable for oral administration may include flavoringagents.

The term “patient” includes both human and other mammals.

The term “treating” refers to: (i) preventing a disease, disorder orcondition from occurring in a patient that may be predisposed to thedisease, disorder, and/or condition but has not yet been diagnosed ashaving it; (ii) inhibiting the disease, disorder, or condition, i.e.,arresting its development; and (iii) relieving the disease, disorder, orcondition, i.e., causing regression of the disease, disorder, and/orcondition.

This disclosure is intended to encompass compounds having Formula (I)when prepared by synthetic processes or by metabolic processes includingthose occurring in the human or animal body (in vivo) or processesoccurring in vitro.

The abbreviations used in the present application, includingparticularly in the illustrative schemes and examples which follow, arewell-known to those skilled in the art. Some of the abbreviations usedare as follows: DMAP for N,N-dimethylaminopyridine; BEMP for2-tert-butylimino-2-diethylamino-1,3-dimethylperhydro-1,3,2-diazaphosphorine;TFA for trifluoroacetic acid; DCM for dichloromethane; rt or RT or Rtfor retention time or room temperature (context will dictate); DMSO fordimethylsulfoxide; EtOAc for ethyl acetate; MeCN or ACN foracetonitrile; PPh₃ for triphenylphosphine; and DMF forN,N-dimethylformamide.

EXAMPLES

The present disclosure will now be described in connection with certainembodiments which are not intended to limit its scope. On the contrary,the present disclosure covers all alternatives, modifications, andequivalents as can be included within the scope of the claims. Thus, thefollowing examples, which include specific embodiments, will illustrateone practice of the present disclosure, it being understood that theexamples are for the purposes of illustration of certain embodiments andare presented to provide what is believed to be the most useful andreadily understood description of its procedures and conceptual aspects.

The compounds of the present disclosure may be prepared using thereactions and techniques described in this section as well as othersynthetic methods known to those of ordinary skill in the art. Thereactions are performed in solvents appropriate to the reagents andmaterials employed and suitable for the transformation being effected.Also, in the description of the synthetic methods described below, it isto be understood that all proposed reaction conditions, including choiceof solvents, reaction temperature, duration of the experiment and workupprocedures, are chosen to be the conditions standard for that reaction,which should be readily recognized by one skilled in the art. It isunderstood by one skilled in the art of organic synthesis that thefunctionality present on various portions of the molecule must becompatible with the reagents and reactions proposed. Such restrictionsto the substituents which are compatible with the reaction conditionswill be readily apparent to one skilled in the art and alternate methodsmust then be used.

The compounds of the invention can be made according to methods known inthe art including those illustrated in Scheme 1 below. Intermediates Acan be formed by sulfonylation of tert-butyl 2-aminoacetate in thepresence of base and a catalytic amount of dimethylaminopyridine (DMAP)at room temperature. Alkylation of intermediates A with aryl methylbromides in the presence of a base such as resin-supported2-tert-butylimino-2-diethylamino-1,3-dimethylperhydro-1,3,2-diazaphosphorine(BEMP), at 90° C. can form intermediate esters B. Compounds C of theinvention can be formed via de-protection of compounds B with, forexample, TFA.

Additional methodology that can provide examples of this invention isdepicted in Scheme 2. Bromo intermediates D can be obtained fromintermediate A by alkylation with bromoaryl methyl bromides in thepresence of a base such as resin-supported (BEMP) at 90° C.Intermediates D can then be coupled with a variety of boronic acids toprovide intermediates E, using for example, Suzuki coupling conditions.The desired compounds F can be obtained by treatment of the Suzukicoupling products, with, for example, TFA in dichloromethane (DCM) atroom temperature.

Intermediate A Tert-butyl 2-(2,2-dimethylchroman-6-sulfonamido)acetate

To the solution of 2,2-dimethylchroman-6-sulfonyl chloride (3.165 g,10.92 mmol) in DCM (50 mL) at −30° C. was added tert-butyl2-aminoacetate (2.308 mL, 16.39 mmol), Hunig'sBase (3.82 mL, 21.85mmol), and catalytic amount of DMAP. The mixture was stirred at 25° C.overnight while the reddish orange color of the reaction mixture turnedbright yellow. The crude reaction mixture was diluted with EtOAc, washedwith dilute aqueous hydrochloric acid solution, then aqueous NaHCO3solution and brine. The organic layer was dried over MgSO4 and removedon a rotavapor to give a creamy powder. The crude material was purifiedby silica chromatography (15-30% EtOAc/Hexanes) to yield 3.6 grams of anoff white powder (88%). ¹H NMR (500 MHz, CDCl3) δ 7.58 (d, J=2.1 Hz,1H), 7.55 (dd, J=8.6, 2.3 Hz, 1H), 6.81 (t, J=10.6 Hz, 1H), 4.90 (s,1H), 3.64 (d, J=5.1 Hz, 2H), 2.81 (t, J=6.7 Hz, 2H), 1.81 (t, J=6.7 Hz,2H), 1.35 (s, 9H), 1.34 (s, 6H). LRMS [ESI, (M−H)⁻] m/z calcd forC17H24NO5S 354.14, found 354.2.

Intermediate B tert-butyl2-(N-(4-bromobenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate

To a solution of tert-butyl 2-(2,2-dimethylchroman-6-sulfonamido)acetate(500 mg, 1.407 mmol) in MeCN (15 mL) was added resin-supported BEMP (786mg, 1.547 mmol) and 1-bromo-4-(bromomethyl)benzene (602 mg, 2.409 mmol).The mixture was heated in a microwave synthesizer at 90° C. for 3 hours.The reaction mixture was filtered, rinsed alternatively bydichloromethane and methanol. The filtrate was concentrated to give areddish orange residue, which was purified by silica chromatography toobtain a white powder (632 mg, 86% yield). ¹H NMR (500 MHz, CDCl3) δ7.59-7.55 (m, 2H), 7.43 (d, J=8.3 Hz, 2H), 7.14 (d, J=8.3 Hz, 2H), 6.84(d, J=9.1 Hz, 1H), 4.45 (s, 2H), 3.78 (s, 2H), 2.79 (t, J=6.7 Hz, 2H),1.83 (t, J=6.7 Hz, 2H), 1.35 (s, 6H), 1.33 (s, 9H). LRMS [ESI, MH⁺] m/zcalcd for C24H31BrNO5S 524.11, found 524.1.

Intermediate C tert-butyl2-(N-(3-bromobenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate

To the solution of tert-butyl2-(2,2-dimethylchroman-6-sulfonamido)acetate (500 mg, 1.407 mmol) inMeCN (15 mL) was added resin-supported BEMP (786 mg, 1.547 mmol) and1-bromo-3-(bromomethyl)benzene (598 mg, 2.391 mmol). The mixture washeated in a microwave synthesizer at 90° C. for 3 hours. The reactionmixture was filtered, rinsed alternatively with dichloromethane andmethanol. The filtrate was concentrated to give a reddish orangeresidue, which was purified by silica chromatography to obtain a whitepowder (620 mg, 84% yield). ¹H NMR (500 MHz, CDCl3) δ 7.60-7.54 (m, 2H),7.40 (d, J=7.4 Hz, 1H), 7.35 (s, 1H), 7.19 (dt, J=15.1, 7.6 Hz, 2H),6.88-6.81 (m, 1H), 4.47 (s, 2H), 3.80 (s, 2H), 2.80 (t, J=6.7 Hz, 2H),1.83 (t, J=6.7 Hz, 2H), 1.35 (s, 6H), 1.35 (s, 9H). LRMS [ESI, MH⁺] m/zcalcd for C24H31BrNO5S 524.11, found 524.1.

Intermediate D tert-butyl2-(N-(3-bromo-5-cyanobenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate

To the solution of tert-butyl2-(2,2-dimethylchroman-6-sulfonamido)acetate (500 mg, 1.407 mmol) inMeCN (15 mL) was added resin-supported BEMP (786 mg, 1.547 mmol) and3-bromo-5-(bromomethyl)benzonitrile (503 mg, 1.829 mmol). The mixturewas heated in a microwave synthesizer at 90° C. for 3 hours. Thereaction mixture was filtered, rinsed alternatively with dichloromethaneand methanol. The filtrate was concentrated to give a reddish orangeresidue, which was purified by silica chromatography to obtain a whitepowder (616 mg, 80% yield). ¹H NMR (500 MHz, CDCl3) δ 7.69 (d, J=8.6 Hz,2H), 7.57-7.52 (m, 2H), 7.49 (s, 1H), 6.85 (d, J=9.3 Hz, 1H), 4.49 (s,2H), 3.82 (s, 2H), 2.81 (t, J=6.7 Hz, 2H), 1.84 (t, J=6.7 Hz, 2H), 1.36(s, 9H), 1.36 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C25H30BrN2O5S549.11, found 549.1.

Intermediate E tert-butyl2-(N-(4-bromo-3-methylbenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate

To the solution of tert-butyl2-(2,2-dimethylchroman-6-sulfonamido)acetate (500 mg, 1.407 mmol) inMeCN (15 mL) was added resin-supported BEMP (786 mg, 1.547 mmol) and1-bromo-4-(bromomethyl)-2-methylbenzene (631 mg, 2.391 mmol). Themixture was heated in a microwave synthesizer at 90° C. for 3 hours. Thereaction mixture was filtered, rinsed alternatively by dichloromethaneand methanol. The filtrate was concentrated to give a reddish orangeresidue, which was purified by silica chromatography to obtain a whitepowder (516 mg, 68% yield). ¹H NMR (500 MHz, CDCl3) δ 7.58 (d, J=2.2 Hz,1H), 7.57 (s, 1H), 7.44 (d, J=8.1 Hz, 1H), 7.09 (s, 1H), 6.92 (dd,J=8.2, 2.1 Hz, 1H), 6.84 (d, J=9.3 Hz, 1H), 4.42 (s, 2H), 3.78 (s, 2H),2.79 (t, J=6.8 Hz, 2H), 2.34 (s, 3H), 1.82 (t, J=6.7 Hz, 2HLRMS [ESI,MH⁺] m/z calcd for C25H33BrNO5S 538.13, found 538.1.

Intermediate F tert-butyl2-(N-(3-bromo-5-fluorobenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate

To the solution of tert-butyl2-(2,2-dimethylchroman-6-sulfonamido)acetate (500 mg, 1.407 mmol) inMeCN (15 mL) was added resin-supported BEMP (786 mg, 1.547 mmol) and1-bromo-3-(bromomethyl)-5-fluorobenzene (501 mg, 1.871 mmol). Themixture was heated in a microwave synthesizer at 90° C. for 3 hours. Thereaction mixture was filtered, rinsed alternatively by dichloromethaneand methanol. The filtrate was concentrated to give a reddish orangeresidue, which was purified by silica chromatography to obtain a whitepowder (688 mg, 86% yield). ¹H NMR (500 MHz, CDCl3) δ 7.56 (d, J=6.2 Hz,2H), 7.18-7.12 (m, 2H), 6.95 (d, J=9.0 Hz, 1H), 6.87-6.80 (m, 1H), 4.46(s, 2H), 3.82 (s, 2H), 2.80 (t, J=6.7 Hz, 2H), 1.83 (t, J=6.7 Hz, 2H),1.36 (s, 9H), 1.35 (s, 6H). ¹⁹F NMR (471 MHz, CDCl3) δ LRMS [ESI, MH⁺]m/z calcd for C24H30BrFNO5S 542.10, found 542.1.

Intermediate G tert-butyl2-(N-(5-bromo-2-methoxybenzyl)-2,2-dimethylchroman-6-sulfonamido)acetate

To the solution of tert-butyl2-(2,2-dimethylchroman-6-sulfonamido)acetate (500 mg, 1.407 mmol) inMeCN (15 mL) was added resin-supported BEMP (786 mg, 1.547 mmol) and4-bromo-2-(bromomethyl)-1-methoxybenzene (500 mg, 1.786 mmol). Themixture was heated in a microwave synthesizer at 90° C. for 3 hours. Thereaction mixture was filtered, rinsed alternatively by dichloromethaneand methanol. The filtrate was concentrated to give a reddish orangeresidue, which was purified by silica chromatography to obtain a whitepowder (700 mg, 85% yield). ¹H NMR (500 MHz, CDCl3) δ 7.56-7.50 (m, 2H),7.34-7.29 (m, 2H), 6.81 (d, J=8.1 Hz, 1H), 6.66 (d, J=8.5 Hz, 1H), 4.47(s, 2H), 3.88 (s, 2H), 3.71 (s, 3H), 2.78 (t, J=6.7 Hz, 2H), 1.82 (t,J=6.7 Hz, 2H), 1.38 (s, 9H), 1.34 (s, 6H). LRMS [ESI, MH⁻] m/z calcd forC25H33BrNO6S 554.12, found 554.1.

EXAMPLES

Example 12-(N-(biphenyl-3-ylmethyl)-2,2-dimethylchroman-6-sulfonamido)acetic acid

To a solution of tert-butyl 2-(2,2-dimethylchroman-6-sulfonamido)acetate(20 mg, 0.056 mmol) in acetonitrile (1 mL) was added3-(bromomethyl)biphenyl (19.47 mg, 0.079 mmol) and resin-supportedBEMP(42.9 mg, 0.084 mmol). The mixture was heated in an oil bath at 90° C.overnight. The reaction mixture was filtered, and the filtrate wasconcentrated to give an orange residue, which was purified bypreparative HPLC using MeCN—H₂O-0.1% TFA as the solvent to obtaintert-butyl2-(N-(biphenyl-3-ylmethyl)-2,2-dimethylchroman-6-sulfonamido)acetate asan oil (26 mg, 84% yield). ¹H NMR (500 MHz, CDCl3) δ 7.64-7.60 (m, 2H),7.54-7.49 (m, 3H), 7.44-7.40 (m, 3H), 7.38 (dd, J=9.4, 5.8 Hz, 1H), 7.33(ddd, J=6.7, 4.0, 1.2 Hz, 1H), 7.22 (d, J=7.7 Hz, 1H), 4.57 (s, 2H),3.84 (s, 2H), 2.78 (t, J=6.7 Hz, 2H), 1.80 (t, J=6.7LRMS [ESI, MNa⁺] m/zcalcd for C30H35NO5SNa 544.21. found 544.32. To the solution oftert-butyl2-(N-(biphenyl-3-ylmethyl)-2,2-dimethylchroman-6-sulfonamido)acetate (23mg, 0.044 mmol) in DCM (1 mL) was added trifluoroacetic acid (0.102 mL,1.323 mmol). The mixture was stirred at RT for 1 hour. The reactionmixture was concentrated to give a reddish residue, which was purifiedby preparative HPLC using MeCN—H2O-0.1% TFA as the solvent to obtain theproduct as a white powder (17 mg, 82% yield). ¹H NMR (500 MHz, CDCl3) δ7.61 (d, J=6.3 Hz, 1H), 7.60 (s, 1H), 7.51 (d, 1H), 7.50 (d, J=7.4 Hz,2H), 7.41 (dd, J=13.4, 5.5 Hz, 2H), 7.39 (s, 1H), 7.36 (d, J=7.7 Hz,1H), 7.34 (t, J=7.3 Hz, 1H), 7.19 (d, J=7.6 Hz, 1H), 6.87-6.83 (m, 1H),4.52 (s, 2H), 3.97 (s, 2H), 2.77 (t, J=6.7 Hz, 2H), 1.79 (t, J=6.7 Hz,2H), 1.33 (s, 6H). LRMS [ESI, (M−H)⁻] m/z calcd for C26H26NO5S 464.15,found 464.32.

Example 22-(N-(biphenyl-2-ylmethyl)-2,2-dimethylchroman-6-sulfonamido)acetic acid

To a Wheaton vial containing 3-(bromomethyl)biphenyl (22.2 mg, 0.090mmol) and resin-supported BEMP (52 mg, 0.095 mmol) was added a solutionof tert-butyl 2-(2,2-dimethylchroman-6-sulfonamido)acetate (18 mg, 0.05mmol) in acetonitrile (1 mL). The mixture was heated to 90° C. andshaken vigorously for two days. The reaction mixture was filtered, andthe filtrate was concentrated. The crude product was taken indichloromethane (0.5 mL) and trifluroacetic acid (0.5 mL) was added. Themixture was shaken for 4 hours at room temperature. It was concentratedand the residue was purified by prep HPLC to obtain the product (15.3mg, 66% yield in two steps). ¹H NMR (600 MHz, DMSO/CDCl3) δ 7.52-7.46(m, 1H), 7.46-7.41 (m, 2H), 7.41-7.33 (m, 5H), 7.23 (d, J=7.4 Hz, 2H),7.19-7.14 (m, 1H), 6.77 (d, J=9.1 Hz, 1H), 4.40 (s, 2H), 3.63 (s, 2H),2.75 (t, J=6.4 Hz, 2H), 1.82 (t, J=6.5 Hz, 2H), 1.34 (s, 6H). LRMS [ESI,MH⁺] m/z calcd for C26H28NO5S 466.17, found 466.22.

Example 32-(N-(biphenyl-4-ylmethyl)-2,2-dimethylchroman-6-sulfonamido)acetic acid

To a solution of tert-butyl 2-(2,2-dimethylchroman-6-sulfonamido)acetate(40 mg, 0.113 mmol) in acetonitrile (2 mL) was added3-(bromomethyl)biphenyl (38.9 mg, 0.158 mmol) and resin-supported BEMP(74.5 mg, 0.164 mmol). The mixture was heated in an oil bath at 90° C.overnight. The reaction mixture was filtered, and the filtrate wasconcentrated to dryness. The crude mixture was taken in DCM (2 mL) andtrifluoroacetic acid was added (1 mL). The mixture was stirred at RT for1 hr and was concentrated to give a off white residue, which waspurified by preparative HPLC using MeCN—H2O-0.1% TFA as the solvent toobtain the product as a white powder (25 mg, 45% in two steps). ¹H NMR(400 MHz, CDCl3) δ 7.66-7.61 (m, 2H), 7.60 (d, J=1.4 Hz, 1H), 7.59-7.56(m, 2H), 7.55 (d, J=1.7 Hz, 1H), 7.49-7.43 (m, 2H), 7.40-7.35 (m, 1H),7.32 (d, J=8.2 Hz, 2H), 6.89 (dd, J=8.5, 7.2 Hz, 1H), 4.52 (s, 2H), 3.99(s, 2H), 2.83 (t, J=6.7 Hz, 2H), 1.86 (t, J=6.7 Hz, 2H), 1.38 (s, 6H).LRMS [ESI, MH⁺] m/z calcd for C26H28NO5S 466.17. found 466.1.

The following examples were prepared according to the methodologydepicted in the above scheme using the following conditions.

General Suzuki Coupling Procedure:

To reaction vials containing separately various aryl boronic acids(0.210 mmol) was added aqueous K₃PO₄ solution (2M, 0.140 mL, 0.280 mmol)and a common DMF stock solution of the starting material—substitutedtert-butyl 2-(N-(bromobenzyl)-2,2-dimethylchroman-6-sulfonamido)acetates(Intermediates B-G) (1.5 mL each, 0.070 mmol). Pd(Ph₃P)₄ powder (about8.09 mg, 7.00 μmol) was added into each tube, and the tubes were capedimmediately before they were placed in oil bath (100˜105° C.) andstirred overnight. Each crude reaction mixture was filtered by 0.45 umPVDF to give a clear sample, which was purified by preparative HPLC(CH₃CN—H₂O-0.1% TFA as the eluent) to yield white or pale yellowproducts. Each purified coupling product was then dissolved indichloromethane (2 mL) and TFA (1 mL) was added. The solution wasstirred at room temperature for 1 hour, and TFA and solvent was removedunder vacuo to dryness. The residues were taken in DMF and filtered by0.45 um PVDF to give clear solutions, which were purified by preparativeHPLC (CH₃CN—H₂O-0.1% TFA as the eluent) to obtain the desired products.

Example 42-(2,2-dimethyl-N-((2′-methylbiphenyl-3-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.61-7.56 (m, 2H), 7.34 (t, J=7.6 Hz, 1H),7.27-7.22 (m, 3H), 7.22-7.16 (m, 2H), 7.14 (d, J=1.7 Hz, 2H), 6.81 (t,J=9.7 Hz, 1H), 4.49 (s, 2H), 3.97 (s, 2H), 2.76 (t, J=6.7 Hz, 2H), 2.20(s, 3H), 1.79 (t, J=6.7 Hz, 2H), 1.33 (s, 6H). LRMS [ESI, MH⁺] m/z calcdfor C27H3ONO5S 480.18, found 480.2.

Example 52-(N-((3′-cyanobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.78 (d, J=1.6 Hz, 1H), 7.75-7.70 (m, 1H),7.62 (dt, J=7.7, 1.2 Hz, 1H), 7.59 (dd, J=6.5, 2.4 Hz, 2H), 7.53 (t,J=7.8 Hz, 1H), 7.47 (d, J=7.9 Hz, 1H), 7.41 (dd, J=8.5, 6.7 Hz, 2H),7.29-7.26 (m, 1H), 6.87-6.83 (m, 1H), 4.51 (s, 2H), 3.96 (s, 2H), 2.78(t, J=6.7 Hz, 2H), 1.80 (t, J=6.7 Hz, 2H), 1.33 (s, 6H). LRMS [ESI, MH⁺]m/z calcd for C27H27N205S 491.16, found 491.2.

Example 62-(N-((3′,4′-dimethylbiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62-7.58 (m, 2H), 7.49 (d, J=7.8 Hz, 1H),7.37-7.32 (m, 2H), 7.28 (s, 1H), 7.23 (dd, J=7.8, 1.8 Hz, 1H), 7.19-7.13(m, 2H), 6.85 (d, J=8.3 Hz, 1H), 4.51 (s, 2H), 3.96 (s, 2H), 2.76 (t,J=6.7 Hz, 2H), 2.31 (s, 3H), 2.29 (s, 3H), 1.78 (t, J=6.7 Hz, 2H), 1.32(s, 6H). LRMS [ESI, MH⁺] m/z calcd for C28H32NO5S 494.2, found 494.3.

Example 72-(N-((3′-methoxybiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62-7.58 (m, 2H), 7.50 (d, J=7.8 Hz, 1H),7.39 (s, 1H), 7.36 (t, J=7.7 Hz, 1H), 7.33 (t, J=7.9 Hz, 1H), 7.20 (d,J=7.6 Hz, 1H), 7.08 (d, J=7.9 Hz, 1H), 7.06-7.03 (m, 1H), 6.88 (dd,J=8.2, 2.4 Hz, 1H), 6.86-6.82 (m, 1H), 4.51 (s, 2H), 3.96 (s, 2H), 3.85(s, 3H), 2.76 (t, J=6.7 Hz, 2H), 1.79 (t, J=6.7 Hz, 2H), 1.32 (s, 6H).LRMS [ESI, MH⁺] m/z calcd for C27H30NO6S 496.18, found 496.2.

Example 82-(N-((3′-chlorobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62-7.57 (m, 2H), 7.49-7.45 (m, 2H), 7.38 (d,J=7.7 Hz, 1H), 7.35 (dd, J=12.3, 4.7 Hz, 3H), 7.31 (dt, J=7.4, 1.8 Hz,1H), 7.22 (d, J=7.6 Hz, 1H), 6.87-6.83 (m, 1H), 4.51 (s, 2H), 3.96 (s,2H), 2.77 (t, J=6.7 Hz, 2H), 1.79 (t, J=6.7 Hz, 2H), 1.32 (s, 6H). LRMS[ESI, MH⁺] m/z calcd for C26H27ClNO5S 500.13, found 500.13.

Example 92-(2,2-dimethyl-N-(3-(naphthalen-2-yl)benzyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.94 (d, J=1.1 Hz, 1H), 7.89 (d, J=8.6 Hz,2H), 7.87-7.82 (m, 1H), 7.65-7.59 (m, 4H), 7.49 (pd, J=6.9, 3.5 Hz, 3H),7.41 (t, J=7.7 Hz, 1H), 7.21 (d, J=7.6 Hz, 1H), 6.86 (d, J=8.4 Hz, 1H),4.55 (s, 2H), 3.99 (s, 2H), 2.74 (t, J=6.7 Hz, 2H), 1.74 (t, J=6.7 Hz,2H), 1.29 (s, 6H). LRMS [ESI, MH⁻] m/z calcd for C30H3ONO5S 516.18,found 516.2.

Example 102-(2,2-dimethyl-N-(3-(naphthalen-1-yl)benzyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.88 (d, J=8.1 Hz, 1H), 7.84 (d, J=8.2 Hz,1H), 7.78 (d, J=8.5 Hz, 1H), 7.61-7.55 (m, 2H), 7.50 (d, J=7.3 Hz, 1H),7.47 (d, J=7.0 Hz, 1H), 7.44-7.38 (m, 3H), 7.32 (d, J=7.0 Hz, 1H), 7.29(dd, J=5.5, 3.2 Hz, 1H), 7.27 (s, 1H), 6.81-6.77 (m, 1H), 4.52 (s, 2H),4.00 (s, 2H), 2.69 (t, J=6.7 Hz, 2H), 1.73 (t, J=6.7 Hz, 2H), 1.29 (s,6H). LRMS [ESI, MH⁺] m/z calcd for C30H30NO5S 516.18, found 516.2.

Example 112-(2,2-dimethyl-N-((3′-(trifluoromethyl)biphenyl-3-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.76 (s, 1H), 7.67 (d, J=7.7 Hz, 1H), 7.60 (d,J=6.8 Hz, 3H), 7.55 (d, J=7.7 Hz, 1H), 7.51 (d, J=8.0 Hz, 1H), 7.41 (dd,J=8.6, 6.7 Hz, 2H), 7.26 (d, J=8.2 Hz, 1H), 6.87-6.82 (m, 1H), 4.53 (s,2H), 3.96 (s, 2H), 2.77 (t, J=6.7 Hz, 2H), 1.79 (t, J=6.7 Hz, 2H), 1.32(s, 6H). LRMS [ESI, MH⁻] m/z calcd for C27H27F3NO5S 534.16, found 534.2.

Example 122-(N-((3,5′-dichlorobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.61-7.57 (m, 2H), 7.44 (d, J=7.8 Hz, 1H),7.39 (d, J=7.6 Hz, 1H), 7.37 (d, J=1.8 Hz, 2H), 7.34 (s, 1H), 7.32 (t,J=1.8 Hz, 1H), 7.26 (d, J=7.0 Hz, 1H), 6.87-6.83 (m, 1H), 4.51 (s, 2H),3.95 (s, 2H), 2.77 (t, J=6.7 Hz, 2H), 1.79 (t, J=6.7 Hz, 2H), 1.32 (s,6H). LRMS [ESI, MH⁺] m/z calcd for C26H26C12NO5S 534.09, found 534.2.

Example 132-(2,2-dimethyl-N-((4′-(trifluoromethoxy)biphenyl-3-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.59 (dd, J=6.1, 2.5 Hz, 2H), 7.51-7.48 (m,2H), 7.46 (d, J=7.8 Hz, 1H), 7.37 (t, J=7.7 Hz, 1H), 7.35 (s, 1H), 7.26(d, J=8.3 Hz, 2H), 7.20 (d, J=7.6 Hz, 1H), 6.87-6.82 (m, 1H), 4.51 (s,2H), 3.95 (s, 2H), 2.76 (t, J=6.7 Hz, 2H), 1.79 (t, J=6.7 Hz, 2H), 1.32(s, 6H). LRMS [ESI, MH⁺] m/z calcd for C27H27F3NO6S 550.15, found 550.2.

Example 142-(2,2-dimethyl-N-((3′-(trifluoromethoxy)biphenyl-3-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.60 (dd, J=6.0, 2.5 Hz, 2H), 7.48 (d, J=7.8Hz, 1H), 7.46-7.42 (m, 2H), 7.39 (dd, J=8.8, 6.5 Hz, 2H), 7.35 (s, 1H),7.24 (d, J=9.6 Hz, 1H), 7.19 (d, J=7.0 Hz, 1H), 6.86-6.82 (m, 1H), 4.52(s, 2H), 3.96 (s, 2H), 2.77 (t, J=6.7 Hz, 2H), 1.79 (t, J=6.7 Hz, 2H),1.32 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C27H27F3NO6S 550.15, found550.2.

Example 152-(2,2-dimethyl-N-((2′-(trifluoromethoxy)biphenyl-3-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.63-7.56 (m, 2H), 7.40-7.30 (m, 6H),7.28-7.23 (m, 2H), 6.83 (d, J=8.4 Hz, 1H), 4.51 (s, 2H), 3.95 (s, 2H),2.77 (t, J=6.7 Hz, 2H), 1.79 (t, J=6.7 Hz, 2H), 1.33 (s, 6H). LRMS [ESI,MH⁺] m/z calcd for C27H27F3NO6S 550.15, found 550.1.

Example 162-(N-(3-(8-methoxy-2-methylquinolin-5-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid. TFA

¹H NMR (500 MHz, CDCl3) δ 8.69 (d, J=8.8 Hz, 1H), 7.68 (d, J=8.9 Hz,1H), 7.59 (d, J=8.1 Hz, 1H), 7.57 (d, J=1.9 Hz, 1H), 7.53 (dd, J=8.6,2.2 Hz, 1H), 7.41 (t, J=7.6 Hz, 1H), 7.38 (s, 1H), 7.32 (d, J=8.3 Hz,1H), 7.27 (dd, J=12.7, 4.7 Hz, 2H), 6.79 (d, J=8.6 Hz, 1H), 4.41 (s,2H), 4.06 (s, 3H), 3.88 (s, 2H), 2.99 (s, 3H), 2.75 (t, J=6.6 Hz, 2H),1.81-1.73 (m, 2H), 1.31 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC31H33N2O6S 561.21, found 560.2.

Example 172-(2,2-dimethyl-N-((2′-methylbiphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.63 (d, J=2.1 Hz, 1H), 7.60 (dd, J=8.6, 2.3Hz, 1H), 7.31-7.24 (m, 6H), 7.22 (dd, J=8.3, 3.2 Hz, 1H), 7.18 (d, J=6.5Hz, 1H), 6.85 (d, J=8.6 Hz, 1H), 4.50 (s, 2H), 3.98 (s, 2H), 2.82 (t,J=6.7 Hz, 2H), 2.24 (s, 3H), 1.83 (t, J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS[ESI, MH⁺] m/z calcd for C27H30NO5S 480.18, found 480.2.

Example 182-(N-((3′-cyanobiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.83 (d, J=1.6 Hz, 1H), 7.78 (d, J=7.9 Hz,1H), 7.64-7.61 (m, 2H), 7.60 (dd, J=8.6, 2.3 Hz, 1H), 7.54 (t, J=7.8 Hz,1H), 7.51 (d, J=8.2 Hz, 2H), 7.35 (d, J=8.1 Hz, 2H), 6.86 (d, J=8.5 Hz,1H), 4.50 (s, 2H), 3.96 (s, 2H), 2.82 (t, J=6.7 Hz, 2H), 1.84 (t, J=6.7Hz, 2H), 1.36 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C27H27N2O5S 491.16,found 491.2.

Example 192-(N-((3′,4′-dimethylbiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62-7.57 (m, 2H), 7.51 (d, J=8.1 Hz, 2H),7.33 (s, 1H), 7.29 (d, J=7.8 Hz, 1H), 7.26 (d, J=8.1 Hz, 2H), 7.19 (d,J=7.8 Hz, 1H), 6.85 (d, J=8.3 Hz, 1H), 4.48 (s, 2H), 3.95 (s, 2H), 2.80(t, J=6.7 Hz, 2H), 2.32 (s, 3H), 2.29 (s, 3H), 1.82 (t, J=6.7 Hz, 2H),1.35 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C28H32NO5S 494.2, found494.2.

Example 202-(N-((3′-methoxybiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62-7.58 (m, 2H), 7.52 (d, J=8.1 Hz, 2H),7.34 (t, J=7.9 Hz, 1H), 7.28 (d, J=8.1 Hz, 2H), 7.14 (d, J=7.7 Hz, 1H),7.09-7.06 (m, 1H), 6.89 (dd, J=8.2, 2.5 Hz, 1H), 6.85 (d, J=8.3 Hz, 1H),4.48 (s, 2H), 3.95 (s, 2H), 3.85 (s, 3H), 2.80 (t, J=6.7 Hz, 2H), 1.82(t, J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for 27H30NO6S496.18, found 496.2.

Example 212-(N-((3′-chlorobiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62-7.57 (m, 2H), 7.53 (t, J=1.8 Hz, 1H),7.49 (d, J=8.2 Hz, 2H), 7.43 (dt, J=7.6, 1.4 Hz, 1H), 7.35 (t, J=7.7 Hz,1H), 7.33-7.27 (m, 3H), 6.85 (d, J=8.3 Hz, 1H), 4.49 (s, 2H), 3.95 (s,2H), 2.80 (t, J=6.7 Hz, 2H), 1.83 (t, J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS[ESI, MH⁺] m/z calcd for C26H27ClNO5S 500.13, found 500.2.

Example 222-(2,2-dimethyl-N-(4-(naphthalen-2-yl)benzyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 8.01 (s, 1H), 7.89 (t, J=8.9 Hz, 2H),7.87-7.84 (m, 1H), 7.70 (dd, J=8.5, 1.8 Hz, 1H), 7.66 (d, J=8.2 Hz, 2H),7.63-7.59 (m, 2H), 7.52-7.46 (m, 2H), 7.33 (d, J=8.1 Hz, 2H), 6.87 (d,J=8.9 Hz, 1H), 4.51 (s, 2H), 3.98 (s, 2H), 2.81 (t, J=6.7 Hz, 2H), 1.83(t, J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC30H30NO5S 516.18, found 516.2.

Example 232-(2,2-dimethyl-N-(4-(naphthalen-1-yl)benzyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.89 (d, J=8.1 Hz, 1H), 7.84 (t, J=8.6 Hz,2H), 7.65 (d, J=2.0 Hz, 1H), 7.62 (dd, J=8.6, 2.3 Hz, 1H), 7.53-7.46 (m,2H), 7.46-7.40 (m, 3H), 7.40-7.36 (m, 1H), 7.34 (d, J=8.0 Hz, 2H), 6.87(d, J=8.6 Hz, 1H), 4.55 (s, 2H), 4.04 (s, 2H), 2.82 (t, J=6.7 Hz, 2H),1.83 (t, J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC30H30NO5S 516.18, found 516.2.

Example 242-(2,2-dimethyl-N-((3′-(trifluoromethyl)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.79 (s, 1H), 7.73 (d, J=7.7 Hz, 1H),7.62-7.58 (m, J=8.2 Hz, 3H), 7.55 (d, J=7.8 Hz, 1H), 7.54-7.51 (m, 2H),7.32 (d, J=8.1 Hz, 2H), 6.86 (d, J=8.3 Hz, 1H), 4.50 (s, 2H), 3.96 (s,2H), 2.80 (t, J=6.7 Hz, 2H), 1.83 (t, J=6.7 Hz, 2H), 1.34 (s, 6H). LRMS[ESI, MH⁺] m/z calcd for C27H27F3NO5S 534.16, found 534.2.

Example 252-(N-((3,5′-dichlorobiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62-7.57 (m, 2H), 7.46 (d, J=8.2 Hz, 2H),7.41 (d, J=1.8 Hz, 2H), 7.33 (t, J=1.8 Hz, 1H), 7.31 (d, J=8.2 Hz, 2H),6.85 (d, J=8.5 Hz, 1H), 4.48 (s, 2H), 3.95 (s, 2H), 2.80 (t, J=6.7 Hz,2H), 1.83 (t, J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC26H26Cl2NO5S 534.09, found 534.1.

Example 262-(2,2-dimethyl-N-((4′-(trifluoromethoxy)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62-7.58 (m, 2H), 7.56 (d, J=8.7 Hz, 2H),7.49 (d, J=8.1 Hz, 2H), 7.31 (d, J=8.1 Hz, 2H), 7.27 (d, J=8.5 Hz, 2H),6.86 (d, J=8.5 Hz, 1H), 4.49 (s, 2H), 3.95 (s, 2H), 2.81 (t, J=6.7 Hz,2H), 1.83 (t, J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC27H27F3NO6S 550.15, found 550.2.

Example 272-(2,2-dimethyl-N-((3′-(trifluoromethoxy)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62-7.58 (m, 2H), 7.51 (d, J=8.2 Hz, 2H),7.48 (d, J=7.9 Hz, 1H), 7.44 (t, J=7.8 Hz, 1H), 7.39 (s, 1H), 7.31 (t,J=7.3 Hz, 2H), 7.20 (d, J=7.9 Hz, 1H), 6.86 (d, J=8.4 Hz, 1H), 4.50 (s,2H), 3.96 (s, 2H), 2.80 (t, J=6.7 Hz, 2H), 1.83 (t, J=6.7 Hz, 2H), 1.35(s, 6H). LRMS [ESI, MH⁺] m/z calcd for C27H27F3NO6S 550.15, found 550.2.

Example 282-(2,2-dimethyl-N-((2′-(trifluoromethoxy)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62 (s, 1H), 7.60 (dd, J=8.6, 2.3 Hz, 1H),7.42-7.38 (m, 3H), 7.38-7.36 (m, 1H), 7.35 (d, J=6.9 Hz, 1H), 7.34-7.31(m, 1H), 7.28 (d, J=8.1 Hz, 2H), 6.85 (d, J=8.6 Hz, 1H), 4.50 (s, 2H),3.97 (s, 2H), 2.81 (t, J=6.7 Hz, 2H), 1.86-1.79 (m, 2H), 1.35 (s, 6H).LRMS [ESI, MH⁺] m/z calcd for C27H27F3NO6S 550.15, found 550.2.

Example 292-(N-(4-(8-methoxy-2-methylquinolin-5-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 8.53 (d, J=8.8 Hz, 1H), 7.62 (d, J=2.1 Hz,1H), 7.59-7.57 (m, 1H), 7.57-7.55 (m, 1H), 7.54 (d, J=8.2 Hz, 1H), 7.34(d, J=8.0 Hz, 2H), 7.30 (d, J=8.3 Hz, 1H), 7.25 (d, J=8.0 Hz, 2H), 6.81(d, J=8.6 Hz, 1H), 4.44 (s, 2H), 4.10 (s, 3H), 3.86 (s, 2H), 3.03 (s,3H), 2.81 (t, J=6.7 Hz, 2H), 1.81 (t, J=6.7 Hz, 2H), 1.33 (s, 6H). LRMS[ESI, MH⁺] m/z calcd for C31H33N2O6S 561.21, found 561.3.

Example 302-(N-((5-cyano-2′-methylbiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.58 (s, 1H), 7.56 (dd, J=8.6, 2.3 Hz, 1H),7.53 (s, 1H), 7.46 (d, J=5.2 Hz, 2H), 7.32-7.27 (m, 2H), 7.26-7.22 (m,1H), 7.11 (d, J=7.5 Hz, 1H), 6.84 (d, J=8.6 Hz, 1H), 4.52 (s, 2H), 4.00(s, 2H), 2.79 (t, J=6.7 Hz, 2H), 2.20 (s, 3H), 1.82 (t, J=6.7 Hz, 2H),1.34 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C28H29N2O5S 505.18, found505.2.

Example 312-(N-((3′,5-dicyanobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.81-7.77 (m, 2H), 7.75 (t, J=3.0 Hz, 2H),7.70 (d, J=7.7 Hz, 1H), 7.62-7.55 (m, 3H), 7.54 (s, 1H), 6.85 (d, J=8.4Hz, 1H), 4.54 (s, 2H), 4.00 (s, 2H), 2.80 (t, J=6.7 Hz, 2H), 1.82 (t,J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C28H26N3O5S516.16, found 516.2.

Example 322-(N-((5-cyano-3′,4′-dimethylbiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.75 (s, 1H), 7.67 (s, 1H), 7.57 (dd, J=6.0,2.7 Hz, 2H), 7.39 (s, 1H), 7.27 (s, 1H), 7.21 (s, 2H), 6.86-6.82 (m,1H), 4.53 (s, 2H), 3.99 (s, 2H), 2.77 (t, J=6.7 Hz, 2H), 2.32 (s, 3H),2.30 (s, 3H), 1.80 (t, J=6.7 Hz, 2H), 1.33 (s, 6H). LRMS [ESI, MH⁺] m/zcalcd for C29H31N2O5S 519.2, found 519.3.

Example 332-(N-((5-cyano-3′-methoxybiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.76 (s, 1H), 7.69 (s, 1H), 7.60-7.55 (m,J=6.6 Hz, 2H), 7.43 (s, 1H), 7.37 (t, J=8.0 Hz, 1H), 7.06 (d, J=7.7 Hz,1H), 7.03-7.01 (m, 1H), 6.95 (dd, J=8.2, 2.4 Hz, 1H), 6.88-6.82 (m, 1H),4.53 (s, 2H), 3.99 (s, 2H), 3.86 (s, 3H), 2.78 (t, J=6.7 Hz, 2H), 1.81(t, J=6.7 Hz, 2H), 1.34 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC28H29N2O6S 521.17, found 521.3.

Example 342-(N-((3′-chloro-5-cyanobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.74 (d, J=1.3 Hz, 1H), 7.69 (s, 1H),7.60-7.54 (m, 2H), 7.47 (s, 2H), 7.42-7.35 (m, 3H), 6.88-6.82 (m, 1H),4.54 (s, 2H), 3.99 (s, 2H), 2.78 (t, J=6.6 Hz, 2H), 1.81 (t, J=6.7 Hz,2H), 1.33 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C27H26ClN2O5S 525.13,found 525.2.

Example 352-(N-(3-cyano-5-(naphthalen-2-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.97 (s, 1H), 7.96-7.90 (m, 3H), 7.89 (s, 1H),7.85 (s, 1H), 7.64-7.59 (m, 3H), 7.55-7.52 (m, 2H), 7.49 (s, 1H), 6.87(d, J=9.5 Hz, 1H), 4.59 (s, 2H), 4.03 (s, 2H), 2.79 (d, J=6.7 Hz, 2H),1.79 (t, J=6.6 Hz, 2H), 1.32 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC31H29N2O5S 541.18, found 541.2.

Example 362-(N-(3-cyano-5-(naphthalen-1-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.90 (t, J=8.1 Hz, 2H), 7.70 (s, 1H), 7.66 (d,J=8.3 Hz, 1H), 7.59 (d, J=6.9 Hz, 1H), 7.55 (dd, J=9.9, 4.2 Hz, 3H),7.53-7.49 (m, 2H), 7.46 (dd, J=11.2, 4.1 Hz, 1H), 7.31 (d, J=6.6 Hz,1H), 6.81 (d, J=8.5 Hz, 1H), 4.55 (s, 2H), 4.03 (s, 2H), 2.74 (t, J=6.7Hz, 2H), 1.77 (t, J=6.7 Hz, 2H), 1.31 (s, 6H). LRMS [ESI, MH⁺] m/z calcdfor C31H29N2O5S 541.18, found 541.2.

Example 372-(N-((5-cyano-3′-(trifluoromethyl)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.78 (d, J=1.4 Hz, 1H), 7.75 (d, J=1.6 Hz,2H), 7.70-7.66 (m, 2H), 7.61 (d, J=7.7 Hz, 1H), 7.59-7.55 (m, 2H), 7.52(s, 1H), 6.87-6.82 (m, 1H), 4.55 (s, 2H), 4.00 (s, 2H), 2.79 (t, J=6.7Hz, 2H), 1.81 (t, J=6.7 Hz, 2H), 1.34 (s, 6H). LRMS [ESI, MH⁺] m/z calcdfor C28H26F3N2O5S 559.15, found 559.2.

Example 382-(N-((3,5′-dichloro-5-cyanobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.71 (s, 1H), 7.68 (s, 1H), 7.58-7.54 (m, 2H),7.51 (s, 1H), 7.40 (t, J=1.7 Hz, 1H), 7.37 (d, J=1.7 Hz, 2H), 6.87-6.82(m, 1H), 4.53 (s, 2H), 3.99 (s, 2H), 2.79 (t, J=6.7 Hz, 2H), 1.81 (t,J=6.7 Hz, 2H), 1.34 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC27H25C12N2O5S 559.09, found 559.2.

Example 392-(N-((5-cyano-4′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.74 (s, 1H), 7.71 (s, 1H), 7.60-7.55 (m, 2H),7.54-7.49 (m, 2H), 7.47 (s, 1H), 7.31 (d, J=8.4 Hz, 2H), 6.85 (d, J=8.3Hz, 1H), 4.54 (s, 2H), 3.99 (s, 2H), 2.79 (t, J=6.7 Hz, 2H), 1.82 (t,J=6.7 Hz, 2H), 1.34 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C28H26F3N2O6S575.15, found 575.2.

Example 402-(N-((5-cyano-3′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.75 (s, 1H), 7.73 (s, 1H), 7.59-7.55 (m, 2H),7.50 (t, J=7.9 Hz, 2H), 7.43 (d, J=7.8 Hz, 1H), 7.35 (s, 1H), 7.28 (d,J=8.0 Hz, 1H), 6.85 (d, J=9.0 Hz, 1H), 4.55 (s, 2H), 4.00 (s, 2H), 2.79(t, J=6.7 Hz, 2H), 1.82 (t, J=6.7 Hz, 2H), 1.34 (s, 6H). LRMS [ESI, MH⁺]m/z calcd for C28H26F3N2O6S 575.15, found 575.2.

Example 412-(N-((5-cyano-2′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.67 (s, 1H), 7.60-7.57 (m, 2H), 7.56 (dd,J=8.6, 2.3 Hz, 1H), 7.50 (s, 1H), 7.48-7.42 (m, 1H), 7.41-7.37 (m, 1H),7.37-7.33 (m, 2H), 6.83 (d, J=8.6 Hz, 1H), 4.54 (s, 2H), 3.98 (s, 2H),2.79 (t, J=6.7 Hz, 2H), 1.81 (t, J=6.7 Hz, 2H), 1.34 (s, 6H). LRMS [ESI,MH⁺] m/z calcd for C28H26F3N2O6S 575.15, found 575.2.

Example 422-(N-(3-cyano-5-(8-methoxy-2-methylquinolin-5-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 8.52 (d, J=8.8 Hz, 1H), 7.81 (s, 1H), 7.58 (d,J=8.8 Hz, 1H), 7.55 (dd, J=4.9, 2.5 Hz, 4H), 7.51 (dd, J=8.6, 2.2 Hz,1H), 7.27 (d, J=8.3 Hz, 1H), 6.82 (d, J=8.6 Hz, 1H), 4.39 (s, 2H), 4.07(s, 3H), 3.89 (s, 2H), 2.92 (s, 3H), 2.79 (t, J=6.6 Hz, 2H), 1.81 (t,J=6.7 Hz, 2H), 1.34 (s, 6H). LRMS [ESI, MH⁻] m/z calcd for C32H32N3O6S586.2, found 586.2.

Example 432-(N-((2,2′-dimethylbiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.64 (d, J=2.2 Hz, 1H), 7.61 (dd, J=8.6, 2.3Hz, 1H), 7.25 (d, J=4.0 Hz, 2H), 7.21 (dt, J=12.3, 4.3 Hz, 1H),7.07-7.02 (m, 4H), 6.86 (d, J=8.6 Hz, 1H), 4.47 (s, 2H), 4.00 (s, 2H),2.83 (t, J=6.7 Hz, 2H), 2.01 (s, 3H), 1.99 (s, 3H), 1.84 (t, J=6.7 Hz,2H), 1.35 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C28H32NO5S 494.2, found494.3.

Example 442-(N-((3′-cyano-2-methylbiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.65-7.61 (m, 2H), 7.60 (dd, J=8.6, 2.3 Hz,1H), 7.57 (d, J=1.0 Hz, 1H), 7.52 (dd, J=6.5, 3.0 Hz, 2H), 7.11 (s, 3H),6.86 (d, J=8.6 Hz, 1H), 4.47 (s, 2H), 3.97 (s, 2H), 2.82 (t, J=6.7 Hz,2H), 2.18 (s, 3H), 1.84 (t, J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS [ESI, MH⁺]m/z calcd for C28H29N2O5S 505.18, found 505.2.

Example 452-(2,2-dimethyl-N-((2,3,4′-trimethylbiphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62 (s, 1H), 7.60 (dd, J=8.6, 2.3 Hz, 1H),7.18-7.12 (m, 2H), 7.05 (s, 1H), 7.05-6.99 (m, 3H), 6.85 (d, J=8.6 Hz,1H), 4.46 (s, 2H), 3.98 (s, 2H), 2.81 (t, J=6.7 Hz, 2H), 2.30 (s, 3H),2.29 (s, 3H), 2.21 (s, 3H), 1.83 (t, J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS[ESI, MH⁺] m/z calcd for C29H34NO5S 508.22, found 508.3.

Example 462-(N-((3′-methoxy-2-methylbiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62 (s, 1H), 7.60 (dd, J=8.6, 2.3 Hz, 1H),7.31 (t, J=7.9 Hz, 1H), 7.18-7.13 (m, 1H), 7.07-7.02 (m, 2H), 6.88 (dd,J=8.4, 2.6 Hz, 1H), 6.86 (dd, J=8.1, 2.5 Hz, 2H), 6.83-6.78 (m, 1H),4.46 (s, 2H), 3.97 (d, J=11.2 Hz, 2H), 3.82 (s, 3H), 2.82 (t, J=6.7 Hz,2H), 2.21 (s, 3H), 1.83 (t, J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS [ESI, MH⁺]m/z calcd for C28H32NO6S 510.2, found 510.2.

Example 472-(N-((3′-chloro-2-methylbiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62 (d, J=2.2 Hz, 1H), 7.60 (dd, J=8.6, 2.4Hz, 1H), 7.35-7.29 (m, 2H), 7.27 (d, J=2.1 Hz, 1H), 7.17-7.14 (m, 1H),7.13-7.10 (m, 1H), 7.09-7.04 (m, 2H), 6.85 (d, J=8.6 Hz, 1H), 4.46 (s,2H), 3.97 (s, 2H), 2.86-2.76 (m, 2H), 2.19 (s, 3H), 1.83 (t, J=6.7 Hz,2H), 1.35 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C27H29ClNO5S 514.15,found 514.2.

Example 482-(2,2-dimethyl-N-(3-methyl-4-(naphthalen-2-yl)benzyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.89-7.82 (m, 3H), 7.73 (s, 1H), 7.65 (d,J=2.2 Hz, 1H), 7.62 (dd, J=8.6, 2.4 Hz, 1H), 7.52-7.47 (m, 2H), 7.42(dd, J=8.4, 1.7 Hz, 1H), 7.25 (d, J=8.3 Hz, 1H), 7.13-7.07 (m, 2H), 6.87(d, J=8.6 Hz, 1H), 4.50 (s, 2H), 4.01 (s, 2H), 2.83 (t, J=6.7 Hz, 2H),2.25 (s, 3H), 1.84 (t, J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS [ESI, MH⁺] m/zcalcd for C31H32NO5S 530.2, found 530.3.

Example 492-(2,2-dimethyl-N-(3-methyl-4-(naphthalen-1-yl)benzyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.89 (d, J=8.2 Hz, 1H), 7.85 (d, J=8.2 Hz,1H), 7.66 (s, 1H), 7.63 (dd, J=8.6, 2.2 Hz, 1H), 7.52-7.48 (m, 1H),7.48-7.44 (m, 1H), 7.37 (d, J=3.8 Hz, 2H), 7.28 (d, J=6.9 Hz, 1H), 7.18(d, J=7.6 Hz, 1H), 7.13 (s, 1H), 7.11 (d, J=7.8 Hz, 1H), 6.87 (d, J=8.6Hz, 1H), 4.53 (s, 2H), 4.05 (s, 2H), 2.83 (t, J=6.7 Hz, 2H), 1.96 (s,3H), 1.84 (t, J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC31H32NO5S 530.2, found 530.3.

Example 502-(2,2-dimethyl-N-((2-methyl-3′-(trifluoromethyl)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.63 (d, J=2.2 Hz, 1H), 7.61 (d, J=2.4 Hz,1H), 7.59 (d, J=2.1 Hz, 1H), 7.55-7.50 (m, 2H), 7.46 (d, J=7.7 Hz, 1H),7.15 (d, J=8.4 Hz, 1H), 7.11-7.07 (m, 2H), 6.86 (d, J=8.6 Hz, 1H), 4.47(s, 2H), 3.97 (s, 2H), 2.82 (t, J=6.7 Hz, 2H), 2.19 (s, 3H), 1.84 (t,J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C28H29F3NO5S548.17, found 548.2.

Example 512-(N-((3′,5′-dichloro-2-methylbiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62 (d, J=2.2 Hz, 1H), 7.59 (dd, J=8.6, 2.4Hz, 1H), 7.34 (t, J=1.9 Hz, 1H), 7.16 (d, J=1.9 Hz, 2H), 7.12-7.05 (m,3H), 6.85 (d, J=8.6 Hz, 1H), 4.46 (s, 2H), 3.96 (s, 2H), 2.82 (t, J=6.7Hz, 2H), 2.19 (s, 3H), 1.84 (t, J=6.7 Hz, 2H), 1.35 (s, 6H). LRMS [ESI,MH⁺] m/z calcd for C27H28C12NO5S 548.11, found 548.1.

Example 522-(2,2-dimethyl-N-((2-methyl-4′-(trifluoromethoxy)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.63 (d, J=2.2 Hz, 1H), 7.60 (dd, J=8.6, 2.3Hz, 1H), 7.31-7.27 (m, 2H), 7.24 (d, J=8.4 Hz, 2H), 7.15-7.11 (m, 1H),7.10-7.05 (m, 2H), 6.85 (d, J=8.6 Hz, 1H), 4.46 (s, 2H), 3.97 (s, 2H),2.82 (t, J=6.7 Hz, 2H), 2.19 (s, 3H), 1.83 (t, J=6.7 Hz, 2H), 1.35 (s,6H). LRMS [ESI, MH⁺] m/z calcd for C28H29F3NO6S 564.17, found 564.2.

Example 532-(2,2-dimethyl-N-((2-methyl-3′-(trifluoromethoxy)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.62 (s, 1H), 7.60 (dd, J=8.6, 2.3 Hz, 1H),7.42 (t, J=7.9 Hz, 1H), 7.20 (t, J=8.4 Hz, 2H), 7.16-7.11 (m, 2H),7.10-7.06 (m, 2H), 6.86 (d, J=8.6 Hz, 1H), 4.47 (s, 2H), 3.97 (s, 2H),2.82 (t, J=6.7 Hz, 2H), 2.20 (s, 3H), 1.84 (t, J=6.7 Hz, 2H), 1.35 (s,6H). LRMS [ESI, MH⁺] m/z calcd for C28H29F3NO6S 564.17, found 564.2.

Example 542-(2,2-dimethyl-N-((2-methyl-2′-(trifluoromethoxy)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.64 (d, J=2.1 Hz, 1H), 7.60 (dd, J=8.6, 2.3Hz, 1H), 7.42-7.36 (m, 1H), 7.33 (t, J=7.0 Hz, 2H), 7.24 (dd, J=7.8, 1.6Hz, 1H), 7.09 (d, J=7.6 Hz, 1H), 7.07-7.03 (m, 2H), 6.86 (d, J=8.6 Hz,1H), 4.47 (s, 2H), 3.98 (s, 2H), 2.84-2.78 (m, 2H), 2.06 (s, 3H),1.86-1.80 (m, 2H), 1.35 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC28H29F3NO6S 564.17, found 564.2.

Example 552-(N-(4-(8-methoxy-2-methylquinolin-5-yl)-3-methylbenzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 8.00 (d, J=8.7 Hz, 1H), 7.63 (d, J=1.9 Hz,1H), 7.58 (dd, J=8.6, 2.2 Hz, 1H), 7.47 (d, J=8.7 Hz, 1H), 7.41 (d,J=8.0 Hz, 1H), 7.25 (d, J=7.9 Hz, 1H), 7.15 (s, 1H), 7.11 (d, J=7.9 Hz,1H), 7.06 (d, J=7.7 Hz, 1H), 6.81 (d, J=8.6 Hz, 1H), 4.46 (s, 2H), 4.10(s, 3H), 3.93 (s, 2H), 2.98 (s, 3H), 2.81 (t, J=6.7 Hz, 2H), 1.90 (s,3H), 1.81 (t, J=6.7 Hz, 2H), 1.33 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC32H35N2O6S 575.22, found 575.3.

Example 562-(N-((5-fluoro-2′-methylbiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.61-7.55 (m, 2H), 7.28-7.19 (m, 3H), 7.12 (d,J=7.4 Hz, 1H), 6.97-6.92 (m, 2H), 6.90 (d, J=9.1 Hz, 1H), 6.83 (d, J=8.4Hz, 1H), 4.48 (s, 2H), 3.99 (s, 2H), 2.77 (t, J=6.7 Hz, 2H), 2.21 (s,3H), 1.80 (t, J=6.7 Hz, 2H), 1.33 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC27H29FNO5S 498.18, found 498.3.

Example 572-(N-((3′-cyano-5-fluorobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.77 (d, J=1.6 Hz, 1H), 7.72 (dd, J=7.9, 1.2Hz, 1H), 7.67-7.63 (m, 1H), 7.61-7.57 (m, 2H), 7.55 (t, J=7.8 Hz, 1H),7.24 (s, 1H), 7.17 (dd, J=9.3, 1.8 Hz, 1H), 6.98 (d, J=8.8 Hz, 1H), 6.85(d, J=9.0 Hz, 1H), 4.51 (s, 2H), 3.99 (s, 2H), 2.79 (t, J=6.7 Hz, 2H),1.81 (t, J=6.7 Hz, 2H), 1.34 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC27H26FN2O5S 509.15, found 509.2.

Example 582-(N-((5-fluoro-3′,4′-dimethylbiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.65-7.56 (m, 2H), 7.26 (s, 1H), 7.24-7.15 (m,4H), 6.91-6.78 (m, 2H), 4.50 (s, 2H), 3.98 (s, 2H), 2.77 (t, J=6.6 Hz,2H), 2.31 (s, 3H), 2.29 (s, 3H), 1.79 (t, J=6.7 Hz, 2H), 1.32 (s, 6H).LRMS [ESI, MH⁺] m/z calcd for C28H31FNO5S 512.19, found 512.3.

Example 592-(N-((5-fluoro-3′-methoxybiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.63-7.55 (m, 2H), 7.33 (t, J=7.9 Hz, 1H),7.22-7.16 (m, 2H), 7.06 (dd, J=10.2, 3.3 Hz, 1H), 7.04-7.00 (m, 1H),6.93-6.87 (m, 2H), 6.86-6.82 (m, 1H), 4.50 (s, 2H), 3.98 (s, 2H), 3.85(s, 3H), 2.78 (t, J=6.7 Hz, 2H), 1.80 (t, J=6.7 Hz, 2H), 1.33 (s, 6H).LRMS [ESI, MH⁺] m/z calcd for C27H29FNO6S 514.17, found 514.2.

Example 602-(N-((3′-chloro-5-fluorobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.61-7.55 (m, 2H), 7.47 (s, 1H), 7.38-7.31 (m,3H), 7.19-7.14 (m, 2H), 6.93 (d, J=8.8 Hz, 1H), 6.87-6.82 (m, 1H), 4.50(s, 2H), 3.98 (s, 2H), 2.78 (t, J=6.7 Hz, 2H), 1.80 (t, J=6.7 Hz, 2H),1.33 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C26H26C1FNO5S 518.12, found518.2.

Example 612-(N-(3-fluoro-5-(naphthalen-2-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.94 (s, 1H), 7.91-7.82 (m, 3H), 7.63-7.57 (m,3H), 7.54-7.47 (m, 2H), 7.37-7.28 (m, 2H), 6.91 (d, J=8.9 Hz, 1H), 6.86(d, J=9.3 Hz, 1H), 4.54 (s, 2H), 4.01 (s, 2H), 2.76 (t, J=6.7 Hz, 2H),1.75 (t, J=6.7 Hz, 2H), 1.30 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC30H29FNO5S 534.18, found 534.2.

Example 622-(N-(3-fluoro-5-(naphthalen-1-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.89 (d, J=8.1 Hz, 1H), 7.85 (d, J=8.2 Hz,1H), 7.77 (d, J=8.4 Hz, 1H), 7.60-7.55 (m, 2H), 7.49 (t, J=7.6 Hz, 2H),7.44 (dd, J=11.2, 4.0 Hz, 1H), 7.31 (t, J=7.6 Hz, 1H), 7.12 (d, J=9.1Hz, 1H), 7.08 (s, 1H), 7.00 (d, J=9.1 Hz, 1H), 6.80 (d, J=8.4 Hz, 1H),4.52 (s, 2H), 4.02 (s, 2H), 2.72 (t, J=6.7 Hz, 2H), 1.75 (t, J=6.7 Hz,2H), 1.30 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C30H29FNO5S 534.18,found 534.2.

Example 632-(N-((5-fluoro-3′-(trifluoromethyl)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.73 (s, 1H), 7.67 (d, J=7.7 Hz, 1H), 7.63 (d,J=7.8 Hz, 1H), 7.61-7.53 (m, 3H), 7.23 (s, 1H), 7.20 (d, J=9.3 Hz, 1H),6.97 (d, J=8.8 Hz, 1H), 6.87-6.82 (m, 1H), 4.52 (s, 2H), 3.99 (s, 2H),2.78 (t, J=6.7 Hz, 2H), 1.80 (t, J=6.7 Hz, 2H), 1.33 (s, 6H). LRMS [ESI,MH⁺] m/z calcd for C27H26F4NO5S 552.15, found 552.2.

Example 642-(N-((3,5′-dichloro-5-fluorobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.60-7.56 (m, 2H), 7.36 (s, 3H), 7.16 (s, 1H),7.14 (dd, J=9.2, 2.0 Hz, 1H), 6.98 (d, J=8.8 Hz, 1H), 6.88-6.83 (m, 1H),4.50 (s, 2H), 3.98 (s, 2H), 2.78 (t, J=6.7 Hz, 2H), 1.80 (t, J=6.7 Hz,2H), 1.33 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C26H25C12FNO5S 552.08,found 552.1.

Example 652-(N-((5-fluoro-4′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.61-7.57 (m, 2H), 7.52-7.49 (m, 1H),7.49-7.46 (m, 1H), 7.27 (d, J=8.3 Hz, 2H), 7.19-7.14 (m, 2H), 6.91 (d,J=8.9 Hz, 1H), 6.87-6.83 (m, 1H), 4.51 (s, 2H), 3.98 (s, 2H), 2.78 (t,J=6.7 Hz, 2H), 1.80 (t, J=6.7 Hz, 2H), 1.33 (s, 6H). LRMS [ESI, MH⁺] m/zcalcd for C27H26F4NO6S 568.14, found 568.2.

Example 662-(N-((5-fluoro-3′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.61-7.56 (m, 2H), 7.45 (dd, J=10.0, 5.7 Hz,1H), 7.41 (dd, J=6.5, 1.3 Hz, 1H), 7.33 (s, 1H), 7.22 (d, J=7.8 Hz, 1H),7.20 (s, 1H), 7.17 (dd, J=9.4, 1.9 Hz, 1H), 6.95 (d, J=8.9 Hz, 1H),6.86-6.82 (m, 1H), 4.51 (s, 2H), 3.98 (s, 2H), 2.78 (t, J=6.7 Hz, 2H),1.80 (t, J=6.7 Hz, 2H), 1.33 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC27H26F4NO6S 568.14, found 568.2.

Example 672-(N-((5-fluoro-2′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.60-7.56 (m, 2H), 7.42-7.37 (m, 1H),7.36-7.35 (m, 1H), 7.35-7.31 (m, 2H), 7.12-7.08 (m, 1H), 7.07 (s, 1H),6.94 (d, J=9.0 Hz, 1H), 6.83 (d, J=8.3 Hz, 1H), 4.50 (s, 2H), 3.98 (s,2H), 2.78 (t, J=6.7 Hz, 2H), 1.80 (t, J=6.7 Hz, 2H), 1.33 (s, 6H). LRMS[ESI, MH⁺] m/z calcd for C27H26F4NO6S 568.14, found 568.2.

Example 682-(N-(3-fluoro-5-(8-methoxy-2-methylquinolin-5-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 8.56 (d, J=8.7 Hz, 1H), 7.58 (s, 1H), 7.55(dd, J=14.6, 5.6 Hz, 3H), 7.26-7.23 (m, 1H), 7.19 (s, 1H), 7.02 (d,J=8.3 Hz, 1H), 6.98 (d, J=8.4 Hz, 1H), 6.82 (d, J=8.6 Hz, 1H), 4.40 (s,2H), 4.08 (s, 3H), 3.89 (s, 2H), 2.95 (s, 3H), 2.78 (t, J=6.5 Hz, 2H),1.81 (t, J=6.7 Hz, 2H), 1.34 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC31H32FN206S 579.2, found 579.3.

Example 692-(N-((4-methoxy-2′-methylbiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.55-7.50 (m, 2H), 7.25-7.18 (m, 4H), 7.17 (d,J=2.2 Hz, 1H), 7.15-7.10 (m, 1H), 6.86 (d, J=8.4 Hz, 1H), 6.81-6.77 (m,1H), 4.50 (s, 2H), 4.00 (s, 2H), 3.77 (s, 3H), 2.73 (t, J=6.7 Hz, 2H),2.23 (s, 3H), 1.77 (t, J=6.7 Hz, 2H), 1.32 (s, 6H). LRMS [ESI, MH⁺] m/zcalcd for C28H32NO6S 510.2, found 510.3.

Example 702-(N-((3′-cyano-4-methoxybiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.75 (d, J=1.5 Hz, 1H), 7.71-7.67 (m, 1H),7.57 (dd, J=7.7, 1.3 Hz, 1H), 7.54 (dd, J=8.6, 2.3 Hz, 1H), 7.52-7.48(m, 2H), 7.45 (dq, J=4.8, 2.4 Hz, 2H), 6.92-6.87 (m, 1H), 6.81 (d, J=8.6Hz, 1H), 4.52 (s, 2H), 4.03 (s, 2H), 3.78 (s, 3H), 2.72 (t, J=6.7 Hz,2H), 1.76 (t, J=6.7 Hz, 2H), 1.31 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC28H29N2O6S 521.17, found 521.2.

Example 712-(N-((4-methoxy-3′,4′-dimethylbiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.55 (dd, J=8.6, 2.3 Hz, 1H), 7.50 (d, J=2.2Hz, 1H), 7.46 (dd, J=8.5, 2.3 Hz, 1H), 7.37 (d, J=2.3 Hz, 1H), 7.25 (d,J=1.2 Hz, 1H), 7.21-7.17 (m, 1H), 7.15 (d, J=7.8 Hz, 1H), 6.85 (d, J=8.5Hz, 1H), 6.81 (d, J=8.6 Hz, 1H), 4.52 (s, 2H), 4.00 (s, 2H), 3.76 (s,3H), 2.70 (t, J=6.7 Hz, 2H), 2.31 (s, 3H), 2.28 (s, 3H), 1.75 (t, J=6.7Hz, 2H), 1.31 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C29H34NO6S 524.21,found 524.3.

Example 722-(N-((3′,4-dimethoxybiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.54 (dd, J=8.6, 2.3 Hz, 1H), 7.50 (d, J=2.1Hz, 1H), 7.47 (dd, J=8.5, 2.3 Hz, 1H), 7.41 (d, J=2.3 Hz, 1H), 7.31 (t,J=7.9 Hz, 1H), 7.06-7.03 (m, 1H), 7.03-7.00 (m, 1H), 6.88-6.83 (m, 2H),6.80 (d, J=8.6 Hz, 1H), 4.52 (s, 2H), 4.02 (s, 2H), 3.85 (s, 3H), 3.76(s, 3H), 2.70 (t, J=6.7 Hz, 2H), 1.75 (t, J=6.7 Hz, 2H), 1.31 (s, 6H).LRMS [ESI, MH⁺] m/z calcd for C28H32NO7S 526.19, found 526.3.

Example 732-(N-((3′-chloro-4-methoxybiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.54 (dd, J=8.6, 2.4 Hz, 1H), 7.51 (d, J=2.3Hz, 1H), 7.46-7.42 (m, 2H), 7.38 (d, J=2.3 Hz, 1H), 7.35-7.30 (m, 2H),7.27-7.24 (m, 1H), 6.87 (d, J=8.5 Hz, 1H), 6.80 (d, J=8.6 Hz, 1H), 4.53(s, 2H), 4.03 (s, 2H), 3.77 (s, 3H), 2.70 (t, J=6.7 Hz, 2H), 1.75 (t,J=6.7 Hz, 2H), 1.31 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C27H29ClNO6S530.14, found 530.2.

Example 742-(N-(2-methoxy-5-(naphthalen-2-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.90 (s, 1H), 7.89-7.85 (m, 2H), 7.83 (d,J=7.9 Hz, 1H), 7.61 (ddd, J=8.4, 3.9, 2.1 Hz, 2H), 7.57 (dd, J=8.6, 2.4Hz, 1H), 7.52 (dd, J=5.4, 2.3 Hz, 2H), 7.51-7.43 (m, 2H), 6.91 (d, J=8.5Hz, 1H), 6.83 (d, J=8.6 Hz, 1H), 4.57 (s, 2H), 4.03 (s, 2H), 3.79 (s,3H), 2.68 (t, J=6.7 Hz, 2H), 1.68 (t, J=6.7 Hz, 2H), 1.27 (s, 6H). LRMS[ESI, MH⁺] m/z calcd for C31H32NO6S 546.2, found 546.2.

Example 752-(N-(2-methoxy-5-(naphthalen-1-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.88 (d, J=8.1 Hz, 1H), 7.83 (t, J=8.5 Hz,2H), 7.54-7.51 (m, 2H), 7.50 (d, J=7.0 Hz, 1H), 7.48-7.45 (m, 1H),7.45-7.41 (m, 1H), 7.40 (dd, J=8.4, 2.2 Hz, 1H), 7.33-7.30 (m, 1H), 7.29(d, J=2.1 Hz, 1H), 6.93 (d, J=8.4 Hz, 1H), 6.76 (d, J=8.3 Hz, 1H), 4.53(s, 2H), 4.03 (s, 2H), 3.81 (s, 3H), 2.65 (t, J=6.7 Hz, 2H), 1.69 (t,J=6.7 Hz, 2H), 1.28 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C31H32NO6S546.2, found 546.3.

Example 762-(N-((4-methoxy-3′-(trifluoromethyl)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.72 (s, 1H), 7.64 (d, J=7.5 Hz, 1H),7.56-7.46 (m, 5H), 7.44 (d, J=2.3 Hz, 1H), 6.89 (d, J=8.5 Hz, 1H), 6.80(d, J=8.6 Hz, 1H), 4.53 (s, 2H), 4.03 (s, 2H), 3.78 (s, 3H), 2.70 (t,J=6.7 Hz, 2H), 1.75 (t, J=6.7 Hz, 2H), 1.30 (s, 6H). LRMS [ESI, MH⁺] m/zcalcd for C28H29F3NO6S 564.17, found 564.2.

Example 772-(N-((3′,5′-dichloro-4-methoxybiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.54 (dd, J=8.6, 2.3 Hz, 1H), 7.51 (d, J=2.2Hz, 1H), 7.42 (dd, J=8.5, 2.4 Hz, 1H), 7.37 (d, J=2.4 Hz, 1H), 7.33 (d,J=1.8 Hz, 2H), 7.28 (t, J=1.8 Hz, 1H), 6.87 (d, J=8.6 Hz, 1H), 6.81 (d,J=8.6 Hz, 1H), 4.52 (s, 3H), 4.02 (s, 2H), 3.78 (s, 3H), 2.71 (t, J=6.7Hz, 2H), 1.76 (t, J=6.7 Hz, 2H), 1.31 (s, 6H). LRMS [ESI, MH⁺] m/z calcdfor C27H28C12NO6S 564.1, found 564.2.

Example 782-(N-((4-methoxy-4′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.55 (dd, J=8.6, 2.4 Hz, 1H), 7.52 (d, J=2.1Hz, 1H), 7.48-7.46 (m, 1H), 7.46-7.42 (m, 2H), 7.38 (d, J=2.3 Hz, 1H),7.24 (d, J=8.1 Hz, 2H), 6.87 (d, J=8.5 Hz, 1H), 6.81 (d, J=8.6 Hz, 1H),4.53 (s, 2H), 4.02 (s, 2H), 3.77 (s, 3H), 2.71 (t, J=6.7 Hz, 2H), 1.76(t, J=6.7 Hz, 2H), 1.32 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC28H29F3NO7S 580.16, found 580.2.

Example 792-(N-((4-methoxy-3′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.54 (dd, J=8.6, 2.3 Hz, 1H), 7.51 (d, J=2.1Hz, 1H), 7.46 (dd, J=8.5, 2.4 Hz, 1H), 7.43-7.37 (m, 3H), 7.32 (s, 1H),7.15 (d, J=7.5 Hz, 1H), 6.88 (d, J=8.5 Hz, 1H), 6.80 (d, J=8.6 Hz, 1H),4.52 (s, 2H), 4.02 (s, 2H), 3.78 (s, 3H), 2.71 (t, J=6.7 Hz, 2H), 1.75(t, J=6.7 Hz, 2H), 1.31 (s, 6H). LRMS [ESI, MH⁺] m/z calcd forC28H29F3NO7S 580.16, found 580.2.

Example 802-(N-((4-methoxy-2′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 7.55-7.51 (m, 2H), 7.38 (dd, J=8.5, 2.3 Hz,1H), 7.35-7.29 (m, 4H), 7.28 (d, J=2.2 Hz, 1H), 6.87 (d, J=8.5 Hz, 1H),6.80-6.77 (m, 1H), 4.52 (s, 2H), 4.00 (s, 2H), 3.77 (s, 3H), 2.72 (t,J=6.7 Hz, 2H), 1.76 (t, J=6.7 Hz, 2H), 1.31 (s, 6H). LRMS [ESI, MH⁺] m/zcalcd for C28H29F3NO7S 580.16, found 580.2.

Example 812-(N-(2-methoxy-5-(8-methoxy-2-methylquinolin-5-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid

¹H NMR (500 MHz, CDCl3) δ 8.68 (d, J=8.8 Hz, 1H), 7.56 (d, J=8.8 Hz,1H), 7.52 (s, 1H), 7.52-7.46 (m, 3H), 7.23-7.20 (m, 2H), 6.91 (d, J=8.5Hz, 1H), 6.76 (d, J=8.6 Hz, 1H), 4.39 (s, 2H), 4.02 (s, 3H), 3.92 (s,2H), 3.78 (s, 3H), 2.91 (s, 3H), 2.73 (t, J=6.6 Hz, 2H), 1.76 (t, J=6.7Hz, 2H), 1.31 (s, 6H). LRMS [ESI, MH⁺] m/z calcd for C32H35N2O7S 591.22,found 591.3.

Biological Methods

Plates

Black non-binding surface Corning plates (3655) were spotted with 0.9 μLof compound in twenty point 1:3 dilutions. The same volume of dimethylsulfoxide (DMSO) was added to column 23 of the plate. In column 24, 0.9μL of 2-(N-(4-cyclohexylphenyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid was manually added as a blank to normalize the data.

Enzyme

A membrane prep from a stable HEK cell line expressing LG586 wasprepared by the Cell Resource Group at BMS in Hopewell, N.J. The proteinconcentration of the membrane prep was 1.28 μg/μL. These stocks werekept at −80° C. in 1 mL aliquots. For the assay, membrane was thawed toroom temperature and then added to the assay buffer, 100 mM HEPES in MQwater at pH 7.5. The concentration of the LG586 enzyme in the assay is0.005 μg/mL.

Substrate

The substrate used in this assay was purchased from Sigma (N9876)p-nitrophenyl butyrate (PNP). The substrate is received in the liquidform and must be diluted with DMSO. Stocks were kept in −20° C. at 1Mconcentrations. The final concentration of the substrate is 250 μM.

Assay

Enzyme was added to the plates 80 μL/well using a Multi-drop Combi(Thermo). The plates were incubated with the compound for 10 minutes atroom temperature. Then 9 μL of substrate was added to each well and theplates were immediately read on the Viewlux Imager (Perkin Elmer) inabsorbance mode with the excitation filter of 405 nm and emission filterof 564/250 nm. The read was kinetic, plates were read once every 30seconds for 5 minutes and then slopes were calculated for each well andthe data was reduced with in-house software.

TABLE 1 LE_LG5 Example Data 86PNP_DR Number Structure Range* (IC50, uM)1

A 2

B 3

4

A 0.034 5

B 6

A 7

A 8

A 9

A 10

A 11

A 12

A 13

A 0.032 14

A 15

A 16

C 17

A 18

A 19

A 20

A 21

A 22

A 23

A 0.003 24

A 25

A 26

A 27

A 28

A 29

B 0.951 30

B 31

B 32

A 33

B 34

A 35

A 36

A 37

A 38

A 39

B 0.133 40

A 41

A 42

C 2.835 43

A 44

A 45

A 46

A 47

A 48

A 49

A 50

A 51

A 52

A 53

A 54

A 55

B 56

A 0.019 57

A 0.101 58

A 59

A 60

A 61

A 62

A 63

A 64

A 65

A 66

A 67

A 68

C 1.004 69

B 70

C 1.840 71

B 72

B 73

B 74

B 75

B 0.109 76

A 77

A 78

B 79

A 80

A 81

C 12.750 A = 0.002 − 0.100 μM B = 0.101 − 1.003 μM C = ≧1.004 μM

It will be evident to one skilled in the art that the present disclosureis not limited to the foregoing illustrative examples, and that it canbe embodied in other specific forms without departing from the essentialattributes thereof. It is therefore desired that the examples beconsidered in all respects as illustrative and not restrictive,reference being made to the appended claims, rather than to theforegoing examples, and all changes which come within the meaning andrange of equivalency of the claims are therefore intended to be embracedtherein.

1. A compound of Formula (I)

or a pharmaceutically acceptable salt thereof, wherein: R is selectedfrom hydrogen, cyano, halo, methoxy, and C₁₋₆alkyl; and Ar is selectedfrom phenyl, naphthyl, or quinolinyl, wherein each are substituted with0, 1, or 2 substituents selected from the group consisting of C₁₋₆alkyl,C₁₋₆alkoxy, trifluoromethyl, trifluoromethoxy, cyano, and halo.
 2. Acompound of claim 1, or a pharmaceutically acceptable salt thereof,wherein Ar is phenyl.
 3. A compound of claim 2, or a pharmaceuticallyacceptable salt thereof, wherein R is hydrogen.
 4. A compound of claim2, or a pharmaceutically acceptable salt thereof, wherein R is selectedfrom cyano, halo, and C₁ alkyl.
 5. A compound of claim 1, or apharmaceutically acceptable salt thereof, wherein Ar is naphthyl.
 6. Acompound of claim 5, or a pharmaceutically acceptable salt thereof,wherein R is hydrogen.
 7. A compound of claim 5, or a pharmaceuticallyacceptable salt thereof, wherein R is selected from cyano, halo, and C₁alkyl.
 8. A compound of claim 1, or a pharmaceutically acceptable saltthereof, wherein Ar is quinolinyl.
 9. A compound of claim 8, or apharmaceutically acceptable salt thereof, wherein R is hydrogen.
 10. Acompound of claim 8, or a pharmaceutically acceptable salt thereof,wherein R is selected from cyano, halo, and C₁ alkyl.
 11. A compoundselected from:2-(N-(biphenyl-3-ylmethyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-(biphenyl-2-ylmethyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-(biphenyl-4-ylmethyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-((2′-methylbiphenyl-3-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(N-((3′-cyanobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′,4′-dimethylbiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′-methoxybiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′-chlorobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-(3-(naphthalen-2-yl)benzyl)chroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-(3-(naphthalen-1-yl)benzyl)chroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-((3′-(trifluoromethyl)biphenyl-3-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(N-((3′,5′-dichlorobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-((4′-(trifluoromethoxy)biphenyl-3-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-((3′-(trifluoromethoxy)biphenyl-3-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-((2′-(trifluoromethoxy)biphenyl-3-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(N-(3-(8-methoxy-2-methylquinolin-5-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid, TFA;2-(2,2-dimethyl-N-((2′-methylbiphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(N-((3′-cyanobiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′,4′-dimethylbiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′-methoxybiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′-chlorobiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-(4-(naphthalen-2-yl)benzyl)chroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-(4-(naphthalen-1-yl)benzyl)chroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-((3′-(trifluoromethyl)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(N-((3′,5′-dichlorobiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-((4′-(trifluoromethoxy)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-((3′-(trifluoromethoxy)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-((2′-(trifluoromethoxy)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(N-(4-(8-methoxy-2-methylquinolin-5-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((5-cyano-2′-methylbiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′,5-dicyanobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((5-cyano-3′,4′-dimethylbiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((5-cyano-3′-methoxybiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′-chloro-5-cyanobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-(3-cyano-5-(naphthalen-2-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-(3-cyano-5-(naphthalen-1-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((5-cyano-3′-(trifluoromethyl)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′,5′-dichloro-5-cyanobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((5-cyano-4′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((5-cyano-3′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((5-cyano-2′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-(3-cyano-5-(8-methoxy-2-methylquinolin-5-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((2,2′-dimethylbiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′-cyano-2-methylbiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-((2,3′,4′-trimethylbiphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(N-((3′-methoxy-2-methylbiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′-chloro-2-methylbiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-(3-methyl-4-(naphthalen-2-yl)benzyl)chroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-(3-methyl-4-(naphthalen-1-yl)benzyl)chroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-((2-methyl-3′-(trifluoromethyl)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(N-((3′,5′-dichloro-2-methylbiphenyl-4-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-((2-methyl-4′-(trifluoromethoxy)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-((2-methyl-3′-(trifluoromethoxy)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(2,2-dimethyl-N-((2-methyl-2′-(trifluoromethoxy)biphenyl-4-yl)methyl)chroman-6-sulfonamido)aceticacid;2-(N-(4-(8-methoxy-2-methylquinolin-5-yl)-3-methylbenzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((5-fluoro-2′-methylbiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′-cyano-5-fluorobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((5-fluoro-3′,4′-dimethylbiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((5-fluoro-3′-methoxybiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′-chloro-5-fluorobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-(3-fluoro-5-(naphthalen-2-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-(3-fluoro-5-(naphthalen-1-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((5-fluoro-3′-(trifluoromethyl)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′,5′-dichloro-5-fluorobiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((5-fluoro-4′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((5-fluoro-3′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((5-fluoro-2′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-(3-fluoro-5-(8-methoxy-2-methylquinolin-5-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((4-methoxy-2′-methylbiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′-cyano-4-methoxybiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((4-methoxy-3′,4′-dimethylbiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′,4-dimethoxybiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′-chloro-4-methoxybiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-(2-methoxy-5-(naphthalen-2-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-(2-methoxy-5-(naphthalen-1-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((4-methoxy-3′-(trifluoromethyl)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((3′,5′-dichloro-4-methoxybiphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((4-methoxy-4′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((4-methoxy-3′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid;2-(N-((4-methoxy-2′-(trifluoromethoxy)biphenyl-3-yl)methyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid; and2-(N-(2-methoxy-5-(8-methoxy-2-methylquinolin-5-yl)benzyl)-2,2-dimethylchroman-6-sulfonamido)aceticacid; or a pharmaceutically acceptable salt thereof.
 12. A compositioncomprising a pharmaceutically acceptable amount of a compound of claim1, or a pharmaceutically acceptable salt thereof, and a pharmaceuticallyacceptable carrier.